[crutch] n [ME crucche, fr. OE crycc; akin to OHG krucka crutch] (bef. 12c) 1 a: a support typically fitting under the armpit for use by the disabled in walking b: prop, stay
2: a forked leg rest constituting the pommel of a sidesaddle
3: the crotch of a human being or an animal
4: a forked support
[2]crutch vt (1681): to support on crutches: prop up