Eo.
The sound of eo is either made up of the sounds of both vowels, or like that of o alone.
1. Made up of (2) e and (1) o: e very short, o long, as, beo alive, eolas knowledge; o short, as, beothail lively.
After a Lingual or a Palatal, not quiescent, the e loses its sound, and only qualifies that of the preceding consonant; hence,
2. Like (1) o: long, as, leomhann a lion; short, as, deoch drink.
Eu.
The sound of eu is like (2) e alone: long, as, teum to bite, gleus trim, entertainment.
One of the most marked variations of dialect occurs in the pronunciation of the diphthong eu, which, instead of being pronounced like long e, is over all the North Highlands commonly pronounced like ia; as, nial, ian, fiar, for neul, eun, feur.