Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
French décadent
French décadence (mention)

English decadent (derived)
English decadent (cognate)
German dekadent (derived)
Spanish decadente (cognate)
French décadentisme (suffix)
Hungarian dekadens (derived)
Polish dekadent (borrowed)
Romanian decadent (borrowed)