mēchanē, Lat. māchina: mechanic, mechanism.
mikros, small: microbe (bios), micro-cosm, micro-scope.
mīseo, I hate: misanthrope.
mnē-mon-euō, I remember: mnē-monics, a-mnē-sty (a = not).
monos, alone, one: monad, mon-arch, monk (Ang. Sax.), monastery, monopoly.
morphē, shape: a-morphous, morph-ology, meta-morphose.
mousa, muse: music, museum.
mūthos, a tale, legend: myth.
Naus, a ship: nausea, nautilus, aëro-naut (nautēs, sailor.)
nekros, dead: necro-polis.