LATIN AND GREEK PREFIXES, SUFFIXES AND ROOTS PREFIXES OF MOVEMENT Ad motion toward Intro motion inward Per motion through Pro motion forward Trans motion across or beyond Ab motion away from Ex out of, outward Se aside or apart from De down, away, opposite, remove (4 meanings) ROOTS OF NUMBERS Semi half Uni one Sol one Mono one Bi two Di/du two Tri three Quad four Quin five Pent five Dec ten Cent hundred Milli thousand ROOTS OF SIZE Neg/null none, nothing Vac/van empty, leave Micro very small Min smaller Brev/brid for a short time Plen/plete full of Omni all/everywhere Macro/mega/magna large, great Poly many Multi many ROOTS OF LOCATION Prim/prin first, most important Centro in the centre Medi/meri in the centre Equi in the middle/ same value Circum around, circle Fin end/limit Loc place ROOTS OF MEASUREMENT Meter/metry a device to measure Graph a device to write or record Ology scientific study of something Gram something written or drawn Scrib/script to write