Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English stupid
Old English stoppian (cognate)
Middle French stupide (derived)
Old High German stubarōn (cognate)
Proto-Indo-European *(s)tewp- (root)
Proto-Indo-European *(s)tup- (derived)
Proto-Indo-European *(s)tewp- (mention)
Proto-Indo-European *(s)tew- (derived)
Latin stupidus (derived)
Latin stupeō (mention)

English squid (mention)
English stoopid (mention)
English stupefaction (mention)
English blunt (link)
English stupendous (mention)
English stupefy (mention)
English stupidity (suffix)
English stupidly (suffix)
English stupe (mention)
English stupidness (suffix)
English stupidish (suffix)
English nonstupid (prefix)
English semistupid (prefix)
English stupidy (suffix)
English stupidass (suffix)
English stupidstitious (blend)
English outstupid (prefix)
English unstupid (prefix)
English stupidification (suffix)
English stupidify (suffix)
Latin bardus (link)
Pennsylvania German schtupid (borrowed)
Portuguese palhaço (link)