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

English object (prefix)
English obround (prefix)
English obcordate (prefix)
English obconical (prefix)
English obconic (prefix)
English oblanceolate (prefix)
English obdeltoid (prefix)
English oblyrate (prefix)
English obpandurate (prefix)
English obreniform (prefix)
English obsagittate (prefix)
English obdormition (prefix)
English obpyriform (prefix)
English obcompressed (prefix)
English obhaplostemonous (prefix)
English obomegoid (prefix)
English oboval (prefix)
English obtrullate (prefix)
English obrotund (prefix)
English obturbinate (prefix)
English obtriangular (prefix)