Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latin gratis
Proto-Indo-European *gʷerH- (root)
Latin grātiīs (mention)

English gratis (borrowed)
Galician gratis (derived)
Italian gratis (derived)
Polish gratis (borrowed)
Portuguese grátis (derived)
Romanian gratis (borrowed)
Old Armenian ձրի (mention)