N. final [v] sometimes became [u] ?; [-v?] > [-u?]

N. final [v] sometimes became [u] ?; [-v?] > [-u?]
GS/§4.51 @@@

Phonetic Rule Elements

[-v?] > [-u?]

Phonetic Rule Examples

eilianv > eilianu -v? > -u? ON. elyadme > N. eilian(w) ✧ Ety/ƷEL
galv > galu -v? > -u? ᴹ√GALA > N. galw ✧ Ety/GALA
galv > galu -v? > -u? ᴹ√GAL² > N. galw ✧ EtyAC/GAL²
janv > janu -v? > -u? ᴹ✶yatmā > N. ianw ✧ Ety/YAT
palv > palu -v? > -u? ᴹ√KWAL > N. palw ✧ EtyAC/KWAL
tinv > tinu -v? > -u? ᴹ✶tinmē > N. tinw ✧ Ety/TIN