Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
French similaire
Proto-Indo-European *sem- (root)
Latin similaris (mention)
Latin similis (mention)

English similar (derived)
French similairement (suffix)
French dissimilaire (prefix)
French autosimilaire (prefix)
Italian similare (mention)
Romanian similar (borrowed)