幸甚[koujin] pleased
甚く[itaku] exceedingly
甚だ[hanahada] very
甚しい[hanahadashii] extreme
甚だ以て[hanahadamotte] exceedingly

甚句[jinku] lively song
甚大[jindai] very great
甚六[jinroku] dunce
甚い[itai] painful
劇甚[gekijin] intenseness