Etymograph > Indo-European > Old English > Rules > oe-front-mutate-vowel

sound is 'e' and next sound is 'a':
sound is 'ē' and next sound is 'a':
(sound is 'i' or sound is 'ī') and next sound is 'o':
sound is 'u':
sound is 'ū':
sound is 'o':
sound is 'ō':
sound is 'a':
sound is 'ā':
sound is 'æ':

Related rules

oe-i-umlaut

Referencing rules

oe-front-mutation