cram (v.)
Old English crammian "press something into something else," from Proto-Germanic *kram-/*krem- (cognates: Old High German krimman "to press, pinch," Old Norse kremja "to squeeze, pinch"), from PIE root *ger- "to gather" (cognates: Sanskrit gramah "heap, troop," Old Church Slavonic gramota "heap," Latin gremium "bosom, lap"). Meaning "study intensely for an exam" originally was British student slang first recorded 1803. Related: Crammed; cramming.