Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latin rus
← Avestan π¬­π¬€π¬Žπ¬Žπ¬€π¬΅- (cognate)
← English room (cognate)
← Proto-Indo-European *rewh₁os (derived)
← Proto-Indo-European *rewh₁- (mention)
← Proto-Italic *rowos (derived)
← Old Irish rΓ³e (cognate)

β†’ English rurigenous (mention)
β†’ Latin rurestris (mention)