I. ˈkäg-ˌnāt adjective
Etymology: Latin cognatus, from co- + gnatus, natus, past participle of nasci to be born; akin to Latin gignere to beget — more at kin
Date: circa 1645
1. : of the same or similar nature : generically alike
2. : related by blood ; also : related on the mother's side
3.
a. : related by descent from the same ancestral language
b. of a word or morpheme : related by derivation, borrowing, or descent
c. of a substantive : related to a verb usually by derivation and serving as its object to reinforce the meaning
• cog·nate·ly adverb
II. noun
Date: 1754
: one that is cognate with another