Meaning

noun the small projection of a mammary gland

originFrom Middle English tete, from Old French tete (“teat”) (compare French tette), from Frankish *tittā, *tittō, from Proto-Germanic *tittaz (“teat; nipple; breast”), ultimately of expressive origin. Compare Old High German zizza ("teat"; modern German Zitze), whence also Italian zizza (“teat”). It heavily displaced Old English titt, a cognate of the same origin, which survives as tit, but in more…

Etymology from Wiktionary, CC BY-SA 3.0