Mas-sive, trwm, pwysfawr, mawr
Mas-ter, meistr: meistroli
Ma-tron, hynaf-wraig, gwreigdda
Mat-ter, defnydd; mater, helynt
Ma-ture, addfed; oedog; mewn oed
Max-im, arwiredd, gosodedig
May-or, maer
Mead-ow, dôl, gweirglawdd
Mean-ing, ystyr, meddwl
Mean-ness, salwedd, gwaelder