ON. final [u] became [o]; [-u] > [-o]

ON. final [u] became [o]; [-u] > [-o]
but ON. anu @@@

Related

Phonetic Rule Elements

[-u] > [-o]

Phonetic Rule Examples

kundu > kundo -u > -o ᴹ√KUND-Ū > N. †cunn ✧ Ety/KUNDŪ
manu > mano -u > -o ᴹ√MAN > N. mân ✧ Ety/MAN
xēru > xēro -u > -o ᴹ√KHER > ON. khēro ✧ Ety/KHER