Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Ancient Greek θεωρός
Ancient Greek θέᾱ (mention)
Ancient Greek ὁράω (mention)
Ancient Greek θεός (mention)
Proto-Indo-European *wer- (root)

English theory (mention)
English theorem (mention)
Spanish teoría (mention)
French théorie (mention)
Ancient Greek θεωρία (affix)
Ancient Greek θεωρέω (affix)
Indonesian teori (mention)
Kazakh теорема (mention)
Latin theorema (mention)
Latvian teorija (mention)
Portuguese teoria (mention)
Tagalog teoriya (derived)