Words and Proper Names

oil

2725.
Hamp (Eric P.): On North European *ɔ in Celtic.
In ZCP 46 (1994), pp. 11–12.
Argues that European *ɔ > *o before high vowels (nom. muir *mori-, with raising) but > *a before non-high vowels (gen. muir < *maro-).