Ilk. final [j], [w] became [i], [u]; [-C{jw}] > [-C{eu}]

Ilk. final [j], [w] became [i], [u]; [-C{jw}] > [-C{eu}]

Where [j] (“y”) or [w] became final after short final vowels vanished, these semi-vowels became vowels, first becoming [i] and [u], after which these final [i], [u] usually became [e], [o]. The clearest examples of this development are ᴹ✶winyā > gwini > Ilk. gwine (Ety/WIN) and ᴹ✶wilwā > gwelu > Ilk. gwelo (Ety/WIL).

Phonetic Rule Elements

[-w] > [-u]
[-j] > [-i]

Phonetic Rule Examples

gwenj > gweni -j > -i ᴹ√GWEN > Ilk. gwene ✧ Ety/GWEN
gwinj > gwini -j > -i ᴹ✶winyā > gwini > Ilk. gwine ✧ Ety/WIN
linj > lini -j > -i ᴹ√LIN¹ > Ilk. line ✧ Ety/LIN¹
adw > adu -w > -u ᴹ√AT(AT) > adu > Ilk. ado ✧ Ety/AT(AT)
ganw > ganu -w > -u ᴹ√ƷAN > Dor. ganu ✧ Ety/ƷAN
gelw > gelu -w > -u ᴹ√ƷEL > Dor. gelu ✧ Ety/ƷEL
gwaw > gwau -w > -u ᴹ√WAWA > Ilk. gwau ✧ Ety/WĀ
gwelw > gwelu -w > -u ᴹ✶wilwā > gwelu > Ilk. gwelo ✧ Ety/WIL
heðw > heðu -w > -u ᴹ✶khithwa > Dor. heðu ✧ Ety/KHIS
ŋgolw > ŋgolu -w > -u ᴹ√ÑGOL > Dor. (n)golo ✧ Ety/ÑGOL