Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
German -sam
English -some (cognate)
Proto-Germanic *-samaz (inherited)
Proto-Germanic *samaz (derived)
Middle High German -sam (inherited)
Proto-West Germanic *-sam (inherited)
Old High German -sam (inherited)
Old High German samo (cognate)
Old High German sama (mention)
Proto-Indo-European *somHós (derived)
Dutch -zaam (cognate)

English -some (cognate)
Danish opmærksom (mention)
German aufmerksam (affix)
German gemeinsam (affix)
German mühsam (affix)
German wirksam (affix)
German sparsam (affix)
German enthaltsam (affix)
German fügsam (affix)
German Gewahrsam (affix)
German achtsam (affix)
German beredsam (affix)
German fehlsam (affix)
Dutch -zaam (cognate)