Mydu, v. to arch, to vault
Mydum, n. gesture; mimicry
Mydw, n. aptitude; fluency
Mydwal, a. apt to proceed
Mydwaledd, n. fluent speech
Mydyliad, n. a stacking
Mydylu, v. to stack, to cock
Myddi, n. a hogshead
Myfi, pron, myself, I, me
Myfiaeth, n. egotism