Main Entry:

¹groin

Pronunciation:

\ˈgrȯin\

Function:

noun

Etymology:

alteration of Middle English grynde, from Old English, abyss; akin to Old English grund ground

Date:

circa 1532

1: the fold or depression marking the juncture of the lower abdomen and the inner part of the thigh ; also : the region of this line2 a: the projecting curved line along which two intersecting vaults meet b: a rib that covers this edge3: a rigid structure built out from a shore to protect the shore from erosion, to trap sand, or to direct a current for scouring a channel

[groin illustration]