恐らく[osoraku] perhaps
恐れ[osore] fear
恐れ戦く[osoreononoku] to tremble with fear
恐れ入る[osoreiru] to be sorry
恐ろしい[osoroshii] terrible

恐喝[kyoukatsu] blackmail
恐慌[kyoukou] panic
恐妻家[kyousaika] hen-pecked husband
恐妻病[kyousaibyou] wife-phobia
恐縮[kyoushuku] feeling obliged

沓下[kutsushita] socks
沓直鳥[hototogisu] lesser cuckoo (Cuculus poliocephalus)
わら沓[waragutsu] straw boots
雑沓[zattou] congestion
浅沓[asagutsu] shallow clogs (worn by nobles; originally made of leather, later made of black lacquered paulownia)

深沓[fukagutsu] deep boots
雪沓[yukigutsu] snow boots or shoes
沓脱[kutsunugi] place where one can remove one's shoes before entering a house
沓脱ぎ石[kutsunugiishi] stepping stone