Ynfydu, v. to rave; to be mad
Ynnill, n. advantage, gain: v. to gain, to win
Ynnilliad, n. a gaining
Yno, adv there, then
Ynt, v. are, they are
Yntau, pron. him also, he too
Ynte, adv. otherwise then
Ynyd, n. incipience; shrovetide
Ynys, n. an island, an isle
Yr, n. what is opposite or off: a. the (before vowels)