Compunction

Webster's Condensed Dictionary- A Condensed Dictionary of the English Language · 1909 · p. 120

kom-punkShun, n. Poignant grief or remorse; the sting of conscience. [OF., fr. L. «wipungi, -punctus, to feel remorse, con and pungere, to prick, sting.] — Compunc'tious, -shus, a. Attended with, etc.