出典:Wiktionary
From Middle English rowel, rowell, rowelle, from Old French roel, roiele (compare modern French rouelle), from Late Latin rotella, diminutive of Latin rota (“wheel”). Doublet of rotella.
rowel (複数形 rowels)
rowel (三人称単数 現在形 rowels, 現在分詞 roweling または rowelling, 過去形および過去分詞形 roweled または rowelled)