1807, "pudendal, of or pertaining to the pudendum;" see pudendum + -al (1). Latin pudicus meant "shamefaced, bashful, modest" and in this sense it was used in English from late 14c. Related: Pudicity.
Entries linking to pudic
pudendum n.
"external genitals," often specifically "the vulva," late 14c. (pudenda), from Latin pudendum (plural pudenda), literally "thing to be ashamed of," neuter gerundive of pudere "make ashamed; be ashamed," sometimes said to be from a PIE root *(s)peud- "to punish, repulse," or else "to press, hurry," but de Vaan is doubtful. Translated into Old English as scamlim ("shame-limb"); in Middle English it also was Englished as pudende "male genitals" (late 14c.). Related: Pudendal.
-al 1
suffix forming adjectives from nouns or other adjectives, "of, like, related to, pertaining to," Middle English -al, -el, from French or directly from Latin -alis (see -al (2)).