词根词缀：ob-3

【来源及含义】Latin: across, over, upon

【相关描述】Before c, ob- becomes oc-; before f, ob- becomes of-; before g, ob- becomes og-; before p, ob- becomes op-; before m, ob- becomes o-

【同源单词】obfuscate, obscure

词根词缀：ob-4

【来源及含义】Latin: down

【相关描述】Before c, ob- becomes oc-; before f, ob- becomes of-; before g, ob- becomes og-; before p, ob- becomes op-; before m, ob- becomes o-

【同源单词】occasion

词根词缀：ob-5

【来源及含义】Latin: completely, totally

【相关描述】Before c, ob- becomes oc-; before f, ob- becomes of-; before g, ob- becomes og-; before p, ob- becomes op-; before m, ob- becomes o-

【同源单词】observe, obsess, obsolete, obsoletely, obsoleteness, occupy

词根词缀：obeso-, obes-

【来源及含义】Latin: fat, corpulent

【相关词根词缀】Related fat-word units: adipo-; lard; lipo-; oleo-; omento-; pimelo-; pio-; sebo-; steato-.

【同源单词】antiobesic, bibliobesity, obese, obesity, obesoclinity, obesogen

词根词缀：oblivio-, oblivi-

【来源及含义】Latin: to forget, forgetfulness

【相关词根词缀】 Etymologically related "forget, forgetfulness" word families: aletho-; letho-. Related "memory, remember" word families: memor-; mne-.

【同源单词】oblivescence, obliviate, obliviator, oblivion, oblivionize, oblivions

词根词缀：obscen-

【来源及含义】Latin: offensive, disgusting, foul, loathsome, repulsive

【相关描述】Etymology is of obscenus is unknown. There is no authoritative agreement as to the true origin of this Latin element.

【同源单词】antiobscenity, nonobscene, obscene, obscenely, obsceneness, obscenities

词根词缀：obscur-

【来源及含义】Latin: dark, dusky; indistinct, uncertain; unintelligible; vague; ambiguous

【同源单词】Brevis esse laboro, obscurant, obscurant, obscurantism, obscurantist, obscuration

词根词缀：obsolesc-, obsolescent-, obsolet-

【来源及含义】Latin: to wear out, to grow old; to fall into disuse; to grow out of use; elderly, older

【相关词根词缀】 Related "old; old age, elder" units: gero-; presbyo-; sen-; veter-.

【同源单词】obsolesce, obsolesced, obsolescence, obsolescent, obsolescently, obsolescing

词根词缀：obtusi-

【来源及含义】Latin: to blunt, dull; from ob- "against" plus tundere, "to beat, strike"

【同源单词】blunt, bluntness, obtuse, obtuseness, obtusilingual, obtusion

词根词缀：occult-

【来源及含义】Latin: secret, hidden, concealed

【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, to: "secret, hidden, confidential, concealed": ceal-; clandesti-; crypto-; myster-; orgy; stego-, stegano-.

【同源单词】occult, occult, occult, occult blood, occult mineral, occult science