cognate
adj.
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.
〔李〕[co-（com-）=together 共同；gnate=to be born 出生⇒“to be born together 共同出生的”→] a．①having a common origin 同源的②coming from the same word or root 同词源的
〔李〕[co-(com-)=together共同；gnat (nat)=to be born出生；-e→“being born together共同出生的”→] a. of the same origin;related in origin同种的；同族的