compunction
n. US //kəmˈpəŋkʃən// UK //kəmpˈʌŋkʃən// com·punc·tion
From Middle English compunccion, borrowed from Old French compunction, from Late Latin compunctionem (“a pricking”), from Latin compunctus, the past participle of compungere (“to severely prick”), from com- + pungere (“to prick”).