unguent (n.)youdaoicibaDictYouDict[unguent 词源字典]
"ointment," early 15c., from Latin unguentem "ointment," from stem of unguere "to anoint or smear with ointment," from PIE root *ongw- "to salve, anoint" (cognates: Sanskrit anakti "anoints, smears," Armenian aucanem "I anoint," Old Prussian anctan "butter," Old High German ancho, German anke "butter," Old Irish imb, Welsh ymenyn "butter").[unguent etymology, unguent origin, 英语词源]