mal: bad, badly malformation, maladjusted, dismal, malady, malcontent, malfeasance, maleficent, malevolent, malice, malaria, malfunction, malignant

mega: great, million megaphone, megalomaniac, megabyte, megalopolis, acromegaly

meso: middle mesomorph, mesoamerica, mesosphere

meta: beyond, change metaphor, metamorphosis, metabolism, metahistorical, metainformation, metacognitive, metaphysics

micro: small microscope, microprocessor, microfiche, micrometer, micrograph

mis: bad, badly misinform, misinterpret, mispronounce, misnomer, mistake, misogynist, mistrial, misadventure, misanthrope, misread

multi: many multitude, multipartite, multiply, multipurpose, multicolored, multimedia, multinational

neo: new neologism, neonate, neoclassic, neophyte

non: not nonferrous, nonabrasive, nondescript, nonfat, nonfiction, nonprofit, nonsense, nonentity

omni : all omnipotent, omnivorous, omniscient, omnibus, omnirange, omnipresent