Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Italian solido
Proto-Indo-European *solh₂- (root)
Italian sodo (doublet)
Latin solidus (borrowed)

Italian soldo (doublet)
Italian sodo (doublet)
Italian solidamente (affix)
Italian solidissimo (affix)
Italian semisolido (affix)
Italian supersolido (prefix)