oleousyoudaoicibaDictYouDict[oleous 词源字典]
"Of the nature or consistency of oil; containing oil; oily", Early 17th cent.; earliest use found in Philemon Holland (1552–1637), translator. From classical Latin oleōsus oily from oleum oil + -ōsus. Compare French oléeux, Italian oleoso, Catalan oliós, Spanish oleoso, Portuguese oleoso.[oleous etymology, oleous origin, 英语词源]