trowel (n.)youdaoicibaDictYouDict[trowel 词源字典]
mid-14c., "tool for spreading plaster or mortar," from Old French truele "trowel" (13c.), from Late Latin truella "small ladle, dipper" (mid-12c.), diminutive of Latin trua "a stirring spoon, ladle, skimmer." The gardening tool was so called since 1796.[trowel etymology, trowel origin, 英语词源]