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

English accumulation (borrowed)
Spanish acumulación (borrowed)
French accumulation (borrowed)
Galician acumulación (borrowed)
Italian accumulazione (borrowed)
Portuguese acumulação (borrowed)