The story
From litho- (“relating to a stone or calculus”) + Ancient Greek τρῖψῐς (trîpsĭs, “rubbing, friction”) + -y.
Etymology from Wiktionary, CC BY-SA 4.0.
lithotripsy
Today it means: A treatment, typically using ultrasound shock waves or crushing with a surgical instrument, by which a kidney stone or similar calculus is broken into particles small enough to be voided or washed out. Full definition →