scapular adj.

1680s, "pertaining to the scapula," from Modern Latin scapularis, from Latin scapula "shoulder" (see scapula).

The noun (late 15c.) in reference to a short cloak for the shoulders prescribed for certain monks, is from Medieval Latin scapulare, from scapula. It was attested in Old English in the Medieval Latin form, and the usual Middle English form was scapulary. Related: Scapulary.