tomcat (English)
Where does "tomcat" come from?
The English word 'tomcat' is a compound formed by combining 'Tom' and 'cat'[1]. While 'cat' traces back through Middle English and Old English to Proto-Germanic and Late Latin forms[3], the specific use of 'Tom' to denote a male cat was popularized in 1760 by the anonymous book The Life and Adventures of a Cat[1].
Open questions
- The ultimate origin of the word cat is uncertain, with various scholars proposing Afroasiatic, Uralic, or wanderword roots. [3]
Full etymology tree
- tomcat (English), 'A tom (male cat).'
- compound Tom (English), 'A diminutive of the male given name Thomas, also used as a formal male given name.'
- inherited Thomme (Middle English), 'Tom'
- derived Thomas (Middle English), 'a male given name from Aramaic'
- inherited Thomme (Middle English), 'Tom'
- compound cat (English), 'Terms relating to animals.'
- inherited cat (Middle English), 'cat (feline)'
- inherited catt (Old English), 'cat'
- inherited *kattu (Proto-West Germanic), 'cat'
- inherited *kattuz (Proto-Germanic), 'cat'
- borrowed cattus (Latin), 'a cat'
- derived catta (Latin), 'a female cat'
- borrowed cattus (Latin), 'a cat'
- inherited *kattuz (Proto-Germanic), 'cat'
- inherited *kattu (Proto-West Germanic), 'cat'
- inherited catt (Old English), 'cat'
- inherited cat (Middle English), 'cat (feline)'
- compound Tom (English), 'A diminutive of the male given name Thomas, also used as a formal male given name.'
Sources
Updated October 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris