穏健[onken] quiet
頑健[ganken] robust health
強健[kyouken] robust health
健か[shitataka] determined
健やか[sukoyaka] vigorous

健胃剤[kenizai] stomach medicine
健胃錠[kenijou] stomach tablets
健気[kenage] brave
健脚[kenkyaku] good walker
健脚家[kenkyakuka] good walker

喜び勇む[yorokobiisamu] to be in high spirits
侠勇[kyouyuu] gallantry
真勇[shinyuu] true courage
蛮勇[banyuu] foolhardiness
匹夫の勇[hippunoyuu] rash courage

武勇[buyuu] bravery
武勇伝[buyuuden] martial story
勇ましい[isamashii] brave
勇み足[isamiashi] overeagerness