"excessive growth," 1821, from hyper- "over, exceedingly, to excess" + -trophy "nourishment." Related: Hypertrophic.
Entries linking to hypertrophy
hyper-
word-forming element meaning "over, above, beyond," and often implying "exceedingly, to excess," from Greek hyper (prep. and adv.) "over, beyond, overmuch, above measure," from PIE root *uper "over."
-trophy
word-forming element meaning "food, nourishment," from Greek -trophia, from trophe "food, nourishment," related to trephein "make thrive, nourish, rear; to make solid, congeal, thicken."