The story
From (acetani)lid(e) + -o- + -caine, from cocaine.
Etymology from Wiktionary, CC BY-SA 4.0.
lidocaine
Today it means: A crystalline compound, C₁₄H₂₂N₂O, that is used in the form of its hydrochloride as a local anesthetic and as an antiarrhythmic agent. Full definition →