KNEECAP

PRONUNCIATION: (NEE-kap)

MEANING: noun: A small, flat, triangular bone that covers the front of the knee.
verb tr.: 1. To attack the knee as a way to cripple someone.
2. To undermine or disable, especially in an excessive manner.

ETYMOLOGY: From knee, from Old English cneow + cap, from Old English caeppe, from Latin cappa (cap). Earliest documented use: noun: 1660, verb: 1975. Also see hough and hamstring.
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KNEE CAPP - the middle joint on Li'l Abner's legs

KNEE CHAP - how you disable an assailant in the seedier parts of London

KNEE "C" APP - a small smartphone program that enables your third knee