Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin plexus
Latin plectō (mention)
Latin plectō (affix)
Latin -tus (affix)

English pleach (derived)
English perplex (mention)
English plexus (borrowed)
English plexiform (mention)
French perplexe (mention)
Latin plecto (link)