Etymograph > Indo-European > Old Norse > Rules > on-past-singular-umlaut

word is v-strong-1 and sound is 'í':
word is v-strong-2 and (sound is 'ú' or sound is 'ó') and previous sound is 'j':
word is v-strong-2 and sound is 'ú':
word is v-strong-3 and (sound is 'a' or sound is 'á') and previous sound is 'j':
word is v-strong-3 and (sound is 'e' or sound is 'i'):
word is v-strong-4 and sound is 'e':
word is v-strong-5 and (sound is 'e' or sound is 'i'):
word is v-strong-6 and (sound is 'a' or sound is 'á' or sound is 'e' or sound is 'æ'):
word is v-strong-7 and sound is 'á':

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on-past-stem