coxa \ˈkäksə\noun (pluralcox·ae \-ˌsē, -ˌsī\) Etymology: Latin, hip; akin to Old High German hāhsina hock, Old Irish coss foot, Sanskrit kakṣa armpit 1.: the hip joint : hip 2.[New Latin, from Latin]: the first segment of the leg of an insect or other arthropod by which the leg articulates with the body