*sdrumuc unattested未見語料√ drumucdrumuc + s-instrumental focus工具焦點用來勤勞的；用…勤勞to hardworking with; the thing used for hardworkingingroot詞根√ drumucAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式mdrumuc——*sdrumucPRET過去式*dmnrumuc—*dnrumuc*sndrumucFUT未來式*mpdrumucDIST遠———derived stems衍生詞幹AF主事焦點LF處所焦點PF受事焦點IF工具焦點CAUS使動psdrumuc———