Crutch

A staff with a crosspiece at the head, to be placed under the arm or shoulder, to support the lame or infirm in walking.

A form of pommel for a woman's saddle, consisting of a forked rest to hold the leg of the rider.

A knee, or piece of knee timber

A forked stanchion or post; a crotch. See Crotch.

To support on crutches; to prop up.