丸砥石[marutoishi] grindstone
合わせ砥[awasedo] double whetstone
青砥[aoto] medium-grade millstone
中砥[nakato] medium-grade millstone
剃刀砥[kamisorido] razor strop

砥石[toishi] whetstone
砥ぐ[togu] to sharpen
油砥石[aburatoishi] oilstone
荒砥[arato] rough grindstone
砥粉[tonoko] polishing powder

草臥れる[kutabireru] to get tired
遺草[isou] posthumous works
一年草[ichinensou] annual (plant)
詠草[eisou] draft poem
下草[shitakusa] undergrowth

仮名草紙[kanazoushi] story in the kana
伽草子[togizoushi] fairy-tale book
海草[kaisou] marine plant
乾草[kansou] hay
甘草[kanzou] liquorice