vocalic

A subsidiary but by no means unimportant grammatical process is that of internal vocalic or consonantal change.

In Hebrew, as we have seen, vocalic change is of even greater significance than in English.

In another Indian language, Yokuts, vocalic modifications affect both noun and verb forms.

Consonantal change as a functional process is probably far less common than vocalic modifications, but it is not exactly rare.

There is no trace of such vocalic mutation (“umlaut”) in Gothic, our most archaic Germanic language.