cru (n.)youdaoicibaDictYouDict[cru 词源字典]
from French cru "vineyard," literally "growth" (16c.), from Old French crois (12c.; Modern French croît), from croiss-, stem of croistre "growth, augment, increase," ultimately from Latin crescere "come forth, spring up, grow, thrive" (see crescent).[cru etymology, cru origin, 英语词源]