[ kog-neyt ]
/ ˈkɒg neɪt /


related by birth; of the same parentage, descent, etc.
Linguistics. descended from the same language or form: such cognate languages as French and Spanish.
allied or similar in nature or quality.


a person or thing cognate with another.
a cognate word: The English word cold is a cognate of German kalt.

Nearby words

  1. cogitate,
  2. cogitation,
  3. cogitative,
  4. cogito, ergo sum,
  5. cognac,
  6. cognate object,
  7. cognatic,
  8. cognation,
  9. cognisance,
  10. cognisant

Origin of cognate

1635–45; < Latin cognātus, equivalent to co- co- + -gnātus (past participle of gnāscī, nāscī to be born)

Related formscog·nate·ness, nouncog·nat·ic [kog-nat-ik] /kɒgˈnæt ɪk/, adjectivenon·cog·nate, adjective, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cognate

British Dictionary definitions for cognate


/ (ˈkɒɡneɪt) /


akin; relatedcognate languages
related by blood or descended from a common maternal ancestorCompare agnate
cognate object grammar a noun functioning as the object of a verb to which it is etymologically related, as in think a thought or sing a song


something that is cognate with something else
Derived Formscognately, adverbcognateness, nouncognation, noun

Word Origin for cognate

C17: from Latin cognātus, from co- same + gnātus born, variant of nātus, past participle of nāscī to be born

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for cognate



1640s, from Latin cognatus "of common descent," from com- "together" (see co-) + gnatus, past participle of gnasci, older form of nasci "to be born" (see genus). Words that are cognates are cousins, not siblings. As a noun, from 1754.

Online Etymology Dictionary, © 2010 Douglas Harper