Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English apt
Greek ἅπτειν (cognate)
English aptly (link)
English aptness (link)
English apartment (clipping)
Old French apte (derived)
Latin aptus (derived)
Latin apo (mention)
Latin apisci (mention)
Sanskrit आप्त (cognate)
Sanskrit आप् (mention)

English inept (cognate)
English aptonym (suffix)
English aptly (suffix)
English aptness (suffix)
English aptronym (blend)
English unapt (prefix)
English aptagram (blend)
English overapt (prefix)
English ept (mention)
Norwegian Nynorsk apt (borrowed)
Portuguese apto (link)