Words and Proper Names

foídiam

534.
Greene (David): Varia: III. A detail of syncope.
In Ériu 23 (1972), pp. 232–234.
Discussion of ia in unstressed syllables in OIr., including disyllabic forms in ïa, e.g. in verbal forms foídiam, égthiar, dringthiar, rigthier; also discusses relationship between -bïad and -betis of the substantive verb.