congenial (adj.)youdaoicibaDictYouDict[congenial 词源字典]
1620s, "kindred, sympathetic," from Latin com- "together" (see com-) + genialis "of birth," thus, "kindred" (see genus). Sense of "agreeable" is first recorded 1711. Related: Congeniality.[congenial etymology, congenial origin, 英语词源]