hyperplasia (n.)

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."

word-forming element in biology and medicine denoting "formation, growth, development," from Modern Latin -plasia, from Greek plasis "molding, formation," from plassein "to mold" (see plasma).