Dint

dint \ˈdint\ noun: 1. archaic blow, stroke, 2. force, power, 3. dent
transitive verb: 1. to make a dent in,
2. to impress or drive in with force

Etymology: Middle English, from Old English dynt

FOUR — Eating is viewed as a necessary biological function to be conducted quickly and discreetly behind closed doors.