词根词缀：ostreo-, ostra-, ostre-, ostrei-, ostri-; ostraco-, ostrac-, -ostraca, -ostracan

【来源及含义】Greek: oyster; creatures having or characterized by a type of hard shell

【同源单词】ostraceous, ostracine, ostracism, ostracize, ostracoid, ostraconophobia

词根词缀：phobo-, phob-, -phobia, -phobias, -phobe, -phobiac, -phobist, -phobic, -phobism, -phobous

【来源及含义】Greek: fear, extreme fear of; morbid, excessive, irrational fear, or terror of something or someone; however, sometimes this Greek element also means a strong dislike, dread, or hatred for something or someone

【同源单词】ablutophobia, ablutophobic, acarophobia, acarophobiac, acerbophobia, acerophobia