Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin stultus
Ancient Greek στελεός (cognate)
Proto-Indo-European *stel- (derived)
Latin stolidus (mention)

English stultify (mention)
English stulty (mention)
English stultiloquence (mention)
English stulted (derived)
Greek στερεός (cognate)
Esperanto stulta (derived)
Ido stulta (derived)
Italian stolto (derived)
Latin stultior (mention)
Latin stultitia (mention)
Latin stolidus (mention)
Latin sterilis (cognate)
Latin praestultus (prefix)
Latin stiria (cognate)
Latin stultiloquus (affix)
Neapolitan stordo (inherited)