Fleece, cnu, cnuf: cneifio

Flight, hedfa; ffoad

Flinch, rhuso, ymollwng

Flitch, hannoreb

Fourth, pedwarfed

Freeze, rhewi

Friend, cyfaill

Fright, arswyd, ofn: brawychu

Glance, cipolwg: cipedrych

Grains, grawn; soeg