烟い[kebui] smoky
烟たい[kebutai] smoky
烟たがる[kebutagaru] to be sensitive to smoke
烟る[keburu] to smoke (e.g. fire)
烟管[enkan] kiseru

烟突[entotsu] chimney
喫烟[kitsuen] smoking
禁烟[kinen] abstaining from smoking
煤烟[baien] dirty smoke

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