Titty is a now-obsolete English feminine given name that originated as a diminutive of Letitia. The name was used in England at least from the 17th century, often affectionately or informally by families. However, by the Victorian era, the word 'titty' had become a vulgar slang term for the female breast (derived from the same prehistoric root that gave 'teat' and 'nipple'), making the given name increasingly socially unacceptable. As a result, it fell out of fashion in the late 19th and early 20th centuries and is now virtually unused. The phonetic coincidence that doomed the name 'Titty'—a harmless pet form of Letitia meaning 'joy'—remains a notable curiosity in English onomastics.