The Germanic Accent Shift

In Indo-European accent (or word stress) was probably indicated by pitch and could fall on any syllable in
the word. The placement of the accent depended on the length of the word and the nature of the
morphological elements it contained. In Germanic, the IE movable pitch accent became a fixed accent,
probably based on loudness. The Germanic accent was fixed on the root-syllable of the word. Since most
IE prefixes disappeared at much the same time, the root-syllable was most often the first syllable. The
unaccented syllables which followed the accented root-syllable tended to become reduced in loudness and
have tended to become less distinct or even disappear over the course of time. Since many of these
syllables were grammatical endings in IE, the Germanic languages have lost many of these endings.

First Germanic Sound Shift
The First Germanic Sound Shift, better known as Grimm’s Law, was first described by Jacob Grimm
in 1822. Grimm’s Law affected the Indo-European stop consonants, or stops, which could be articulated
as labial, dental, or velar sounds. IE also had a few other stops, but these were not developed in Germanic.
Hence the IE dialect which gave rise to Germanic had the following stop consonants:

Labial Dental Velar
Voiceless stops p t k
Voiced stops b d g
Voiced aspirate stops bh dh gh

The sounds /bh, dh, gh/ do not exist in Present-Day English. They are similar to voiced stops with an
accompanying breath of air. The changes identified by Grimm are as follows:

Voiceless Stops become Voiceless Fricatives

IE ptk
Gmc after Grimm’s Law f .
x (> h in Old English)

Voiced Stops become Voiceless Stops

IE b d g
Gmc after Grimm’s Law p t k

Voiced Aspirates become Voiced Fricatives*

IE bh dh gh
Gmc after Grimm’s Law ¾ ð .

*/¾/ represents a bi-labial fricative (like /v/, but with both lips together rather than with the top teeth on
the bottom lip), and /
/ represents a velar fricative rather like a gurgle. Usually the voiced fricatives
developed into voiced stops (/b, d, g/) later in history, so that we can ultimately say the IE voiced

aspirates became voiced stops. However, depending upon the position in the word, these sounds could
also develop to /v, ð, j/.

Except in special circumstances, any IE word which contained the original consonants developed the new
consonants after Grimm’s Law. We can see this if we compare some words from languages in other IE
families, which did not undergo Grimm’s Law.

English Other IE Forms

Voiceless Stops (IE p, t, k)
father pater (Latin), pitar (Sanskrit)
foot pes, ped- (Latin)
fish piscis (Latin), pesce (Italian)
three tres (Latin, Spanish), trayas (Sanskrit)
thou tu (French)
hound sun (Sanskrit), canis (Latin)
hundred centum (Latin), satem (Sanskrit)
hemp kánnabis (Greek)

Voiced Stops (PrIE b, d, g)
two dva- (Sanskrit), duo (Latin), dos (Spanish)
know gignoskein (Greek)
knee genu (Latin)
acre ajras (Sanskrit), ager (Latin)

Voiced Aspirates (PrIE bh, dh, gh)
do dha (Sanskrit), feci (Latin)
wagon vah- (Sanskrit), veho (Latin)

All these words are described cognates; that is, they all have a common descent from an earlier parent
language, but they are not borrowed from each other. Hence a word like English two is a cognate of Latin
duo. However, the English word duo (as in ‘the Dynamic Duo’) is borrowed directly from Latin and is
therefore considered a loanword.

Grimm’s Law probably took place because of instabilities in the IE stop system. Each series of
consonants was characterised by three distinct features: stopping, voicing, and aspiration. The systemic
relation between the sounds can be visualised in the table below:

STOPPING VOICING ASPIRATION
voiceless stops yes no no
voiced stops yes yes no
voiced aspirates yes yes yes

Notice that all three features are needed to distinguish the consonants. However, this is no longer the case
after Grimm’s Law:

STOPPING VOICING ASPIRATION
voiceless stops yes no no
voiceless fricatives no no no
voiced fricatives no yes no

Grimm’s Law effectively made aspiration a redundant feature of the system, since none of the resulting
sounds were aspirated. Even when the voiced fricatives later became voiced stops, the system was still
based only on voicing and stopping. This provides one motivation for the sound shift. Grimm’s Law
made aspiration completely redundant. Afterwards, all three series could be distinguished by only two
features, instead of three features.

An apparent exception to Grimm’s Law occurs where an IE voiceless stop followed another voiceless
stop or the voiceless fricative /s/. For example, compare Latin stella and rëctus with their English
equivalents star and right. If Grimm’s Law had affected these forms, we would expect them to have a /./
sound instead a /t/ sound. It is important to realize that after voiceless stops and /s/ no voiced sounds

could occur. Due to a process called assimilation, any voiced sound which may have occurred in this
environment in early IE would have become voiceless under the influence of the preceding voiceless
consonant. The same thing happens in the English words robbed /
/ and stopped //, where the /d/
become voiceless /t/ because the preceding /p/ is voiceless.

We must now address the actual process by which Grimm’s Law took place. Did all the changes happen
at once, or did some changes precede others? One possibility is known as the Drag-Chain Model.
According to this model, Grimm’s Law was initiated by a change of the original voiceless stops to
voiceless fricatives. The original voiced stops were then ‘dragged’ in the resulting ‘gap’ in the system.
There are several problems with this model:

1.
If the first change were of voiceless stops to voiceless fricatives, the result would have been a
‘gap’, or asymmetry, in the system. Although languages can function with such ‘gaps’, they are
generally avoided unless there is some other motivation.
2.
Since languages can
function with such ‘gaps’, there is no necessary reason why the voiceless
stop ‘gap’ should have been filled; some other motivation is required.
3.
If this were a drag chain, the voiced aspirates should not have become fricatives; they should
have become voiced stops in order to fill the ‘gap’. This did not happen until much later in
Germanic, and only gradually and incompletely.
4.
The Drag-Chain model does not explain the failure of Grimm’s Law after voiceless stops and the
voiceless fricative /s/.
Another possibility is the Push-Chain Model. In this model aspiration was nearly redundant in the IE
stop system: it only distinguished voiced stops from voiced aspirates. So these sounds ‘pushed’ apart in
order to maximise the differences in their articulation. This caused a subsequent ‘push’ on the voiceless
stop series. In other words, the voiced stops and voiced aspirates changed first in response to their close
articulation; the change of voiceless stops to fricatives was a secondary change. The Push-Chain Model
has several advantages:

1.
The initial change of IE voiced stops to voiceless stops makes necessary the secondary change of
IE voiceless stops to voiceless fricatives in order to maintain essential distinctions in the system.
2.
The ‘pushing apart’ of the voiced stops and voiced aspirates provides an explanation for the
production of new fricatives: the new sounds were now distinguishable as stop and non-stop
consonants.
3.
If the ‘trigger’ for the change came from the ‘pushing’ of the IE voiced stops on the IE voiceless
stops, then it stands to reason that that ‘trigger’ would not exist in environments where voiced
stops could not exist: that is, after voiceless stops and voiceless /s/. These are precisely the
environments where Grimm’s Law does not take place.
Verner’s Law

Although Grimm’s Law affected the majority of stop consonants in IE, another apparent exception went
unexplained for many years after Grimm. Consider the following forms of the verb meaning ‘to turn’ in
Old English and Sanskrit.

Sanskrit Old English
I turn vártami ic weorþe
I turned vavárta ic wearþ
they turned vavrtimá hie wurdon
turned vavrtaná geworden

The Sanskrit forms show that the consonant at the end of the root-syllable was a *t in IE. The Old English
weorþe and wearþ have /./, as we would expect after Grimm’s Law. But how do we explain the d in
wurdon and geworden?

This unexpected development was explained by Karl Verner in 1875 and has come to be known as
Verner’s Law. He noticed that, after Grimm’s Law occurred, consonants were voiced if they occurred
before the accented syllable. Hence *wurþon and *worþen became *wurðon and *worðen. The voiced
fricatives then became voiced stops later in history, as described above. Since the Old Norse forms
varðon and gavarðon still have the fricatives, we can assume that that change took place in West
Germanic.

As you can see, Verner’s Law had a large impact on the Germanic verb system. In English, that impact
has been gradually reduced by process of analogy. For instance, Verner’s Law caused an alternation
between /s/ and /z/ in some words, and the /z/ became /r/ in West Germanic. Hence in Old English we
have the verb çëosan ‘to choose’, iç çease ‘I chose’, hïe curon ‘they chose’, coren ‘chosen’. The alternation
between /s/ and /z/ (> /r/) still existed in Old English, but later on the /s/ gradually spread to all the forms.

The Timing of the Changes

In order for Verner’s Law to work, we have to assume that Grimm’s Law and Verner’s Law took place
before the Germanic Accent Shift, that is, before the accent became generally fixed at the beginning of
the word. It has been estimated that Germanic first became distinct from Indo-European around 1000 BC.
West Germanic probably branched off around the beginning of the first century AD.

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