IPA: //proʊˈkeɪn//
KK: /proʊˈkeɪn/
A white powder used mainly as a local anesthetic in medical and dental procedures.
The dentist used procaine to numb the area before starting the procedure.
Procaine is derived from the prefix "pro-" (meaning for or in favor of) and the root "caine" (from the chemical suffix used in local anesthetics, derived from "cocaine"). The word refers to a substance that is used in favor of providing anesthesia, specifically as a local anesthetic.
Think of 'pro-' meaning for or in favor of, and 'caine' relating to anesthesia. This helps you remember that procaine is a substance used to provide anesthesia.