en_tn_lite_do_not_use/gen/32/31.md

That is why to this day

This marks a change from the story to background information about the descendants of Israel. (See: rc://en/ta/man/translate/writing-background)

to this day

This means to the day that the author was writing this.

ligaments of the hip

This refers to the muscle that connects the thigh bone to the thigh socket.

hip joint

"thigh socket"

while dislocating

"while striking"