Rare anatomical term; in modern Japanese, 股ぐら (またぐら) is the common word for the crotch/groin area. This term may appear in older or technical texts.
See also: 股ぐら
The notation '跨下' can be seen in old medical books.
「跨下」は現在ではほとんど使われず、代わりに「股ぐら」が用いられる。
'跨下' is hardly used nowadays; '股ぐら' is used instead.
Rare kanji spelling for こか; the word itself is uncommon and usually replaced by 股ぐら in modern Japanese.
Variant kanji form; equally rare.
The kanji 跨 (straddle) and 胯 (crotch) combine with 下 (under) to denote the area between the legs. The exact historical derivation is uncertain; the word is now rare.