sometimes loses its sound, and only qualifies that of the preceding consonant; hence,
3. Like u in fun, short and obscure: as, cionta guilt, tiondadh to turn.
Iu.
The sound of iu is either made up of the sound of both the vowels, or like u alone.
1. Made up of (1) i and (1) u: i short, u long, as, fiù worthy; u short, as, iuchair a key.
After a Lingual or a Palatal, not quiescent, the i loses its sound, and only qualifies that of the preceding consonant; hence,
2. Like (1) u: long, as, diù worst part, refuse; short, as, tiugh thick, giuthas fir.
Oi.
The sound of oi is either made up of the sounds of both the vowels, or like that of o alone.
1. Made up of (1) o and (1) i: o long, i short, as, òigh a virgin; o short, as, troidh a foot.