Ymddianc, n. self-escape
Ymddidoli, v. to separate one’s self
Ymddienyddu, v. to make away with one’s self
Ymddifad, a forlorn, orphan
Ymddiflanu, v. to cause one’s self to vanish
Ymddiflino, v. to divest one’s self of fatigue
Ymddifregru, v. to divest one’s self to frailty
Ymddifwyno, v. to divest one’s self of enjoyment
Ymddifyriad, n. self-diversion
Ymddiffyn, n. self-defence; v. to defend one’s self