Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin regio
Latin regō (affix)
Latin -iō (affix)

English Gerasena (link)
Asturian rexón (derived)
Catalan regió (borrowed)
Corsican regione (borrowed)
Old French regiun (borrowed)
Hungarian régió (borrowed)
Indonesian regio (derived)
Italian Maremma (mention)
Latin regionatim (suffix)
Ladin region (borrowed)
Translingual Tombaugh Regio (derived)
Dutch regio (borrowed)
Albanian rajon (borrowed)
Swedish region (borrowed)