Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Catalan sec
Proto-Indo-European *seyk- (derived)
Latin siccus (inherited)
Old Occitan sec (inherited)

Catalan assecar (confix)
Catalan secor (affix)
Catalan secà (mention)
Catalan secament (suffix)
Catalan sequedat (affix)
Catalan secall (affix)
Catalan secany (affix)