Mag-ni-tude, maint, mawrdra
Maid-ser-vant, gwasanaethferch
Main-te-nance, cynnaliaeth
Ma-jes-ty, mawrhydi
Mal-a-dy, clefyd, dolur
Mal-con-tent, gwrthryfelwr; anfoddog
Ma-li-cious, cenfigenus, dygasog
Ma-lig-nant, athryfgar, anianddrwg
Man-a-cle, llawhual, llawethar
Man-age-ment, llywiadaeth, trefniad