Denshi Jisho — Online Japanese dictionary

澄む すむ to clear (e.g. weather); to become transparent
Common word, Godan verb with mu ending, Intransitive verb 
澄ます すます to clear; to make clear; to be unruffled; to look unconcerned; to look demure; to look prim; to put on airs
Common word, Godan verb with su ending, Transitive verb 
澄み切る すみきる to be serene
Common word, Godan verb with ru ending, Intransitive verb 
澄まし屋 すましや a prim person
Noun 
澄明 ちょうめい clear and bright
Na-adjective, Noun 
澄し汁 すましじる clear soup
Irregular okurigana usage, Noun 
澄まし顔 すましがお composed expression; clear face
Common word, Noun 
澄まし汁 すましじる clear soup
Noun 
澄み渡る すみわたる to be perfectly clear
Godan verb with ru ending, Intransitive verb 
澄んだ水 すんだみず limpid water
Noun 
澄まし込む すましこむ to put on airs; to affect (importance, etc.); to look wise
Godan verb with mu ending, Intransitive verb 
澄み切った すみきった perfectly clear
Noun or verb acting prenominally 
澄ました顔 すましたかお composed expression; clear face
Expression 
澄ましバター すましバター clarified butter
Noun 

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