Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Galician agarimar
Proto-Germanic *ga (prefix)
Proto-Germanic *rīmą (prefix)
Old High German girīman (cognate)
Latin *aggremiare (inherited)
Latin gremium (derived)
Old Portuguese agarimar (inherited)

Galician rima (link)
Galician agarimo (back-formation)