/ ˈkɒgneɪt; NAmE ˈkɑːg-/ adjective , noun
■ adjective
1.
( linguistics ) having the same origin as another word or language :
'Haus' in German is cognate with 'house' in English.
German and Dutch are cognate languages.
2.
( formal ) related in some way and therefore similar :
a cognate development
■ noun
( linguistics ) a word that has the same origin as another :
'Haus' and 'house' are cognates.
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WORD ORIGIN
early 17th cent.: from Latin cognatus , from co- together with + natus born.