esculent (adj.)youdaoicibaDictYouDict[esculent 词源字典]
1620s, from Latin esculentus "good to eat, eatable, fit to eat," from esca "food," from PIE *eds-qa- (cognates: Lithuanian eska "appetite"), from root *ed- "to eat" (see edible). As a noun from 1620s, "food, especially vegetables."[esculent etymology, esculent origin, 英语词源]