Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Italian circolo
Italian cerchio (doublet)
Italian circolante (link)
Italian circolare (link)
Italian circolatorio (link)
Italian circolazione (link)
Latin circulus (borrowed)

Italian cerchio (doublet)
Italian circolare (link)
Italian circolino (affix)
Italian semicircolo (prefix)
Italian microcircolo (prefix)