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

蒼惶[soukou] hurry
蒼惶として[soukoutoshite] in great haste
恐惶謹言[kyoukoukingen] Very truly yours (a complimentary close used in a letter written in an old epistolary style)

恐惶敬白[kyoukoukeihaku] Very truly yours (a complimentary close used in a letter written in an old epistolary style)
惶遽[koukyo] being afraid and panicked
惶懼[kouku] being struck with awe

愛敬[aikyou] charm
愛敬のある[aikyounoaru] charming
畏敬[ikei] reverence
恭敬[kyoukei] respect
敬う[uyamau] to show respect

敬愛[keiai] respect and affection
敬意[keii] respect
敬遠[keien] pretending to respect someone while in fact staying distant from him
敬具[keigu] Yours sincerely
敬語[keigo] honorific

明白[meihaku] obvious
白地[akarasama] plain
白口[shiroguchi] white croaker (Pennahia argentata)
白耳義[berugii] Belgium
白竜[peeron] dragon boat (long 22-person canoe used for racing)

黄白[kouhaku] yellow and white
黄白色[ouhakushoku] yellowish-white
灰白[kaihaku] gray
灰白質[kaihakushitsu] gray matter
灰白色[kaihakushoku] grayish white