Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English ob-
Latin ob (derived)

English obtuse (mention)
English offer (link)
English obtund (affix)
English obambulate (mention)
English obovate (affix)
English obsignate (mention)
English oppignerate (mention)
English obtend (affix)
English obsequent (affix)
English obversant (affix)
English obvention (affix)
English obstupefy (affix)
English obreption (affix)
English obclavate (affix)
English obcordiform (affix)
Indonesian objek (prefix)