augment Look up augment at Dictionary.com
c.1400, from O.Fr. augmenter (14c.), from L.L. augmentare "to increase," from L. augmentum "an increase," from augere "to increase, make big, enlarge, enrich," from PIE base *aug- "to increase" (cf. Skt. ojas- "strength;" Lith. augu "to grow," aukstas "high, of superior rank;" Gk. auxo "increase," auxein "to increase;" Goth. aukan "to grow, increase;" O.E. eacien "to increase").