crotch

n. 分叉处, 丫叉, 胯部

形容词:crotched 

crotch

n.（名词）
The angle or region of the angle formed by the junction of two parts or members, such as two branches, limbs, or legs.
胯部：由两个分支、两条手臂或两条腿等两个部分交叉而成的角区或区域
The fork of a pole or other support.
叉：柱子或其它支承物的叉状部件

来源：
Possibly alteration of crutch
可能为 crutch的变化
and partly from croche [crook, crosier] from Old French croche [hook, shepherd`s crook] [feminine of] croc [hook]
并且部分源自 croche [曲杯杖，权杖] 源自 古法语 croche [弯钩，牧羊杖] [] croc的阴性词 [弯钩]

【引伸】
crotched