Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English purulent
Middle French purulent (borrowed)
Proto-Indo-European *puH- (root)
Latin pūrulentus (derived)
Latin pūs (mention)

English pussy (link)
English mucopurulent (prefix)
English seropurulent (prefix)
English purulently (suffix)
English fibrinopurulent (prefix)
English nonpurulent (prefix)
English caseopurulent (prefix)
English necropurulent (prefix)