Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English sigma
Ancient Greek σῖγμα (mention)
Ancient Greek σίγμα (mention)
Ancient Greek σίζω (mention)
Ancient Greek -μα (mention)

English san (link)
English sigmoid (suffix)
English stigma (mention)
English sigmate (suffix)
English antisigma (prefix)
English sigmatism (suffix)
English sigmatic (suffix)
Japanese シグマ (borrowed)
Thai ซิกมา (borrowed)