Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Yiddish רו
German Ruhe (cognate)
Proto-Germanic *rōwō (inherited)
Middle High German ruo (inherited)
Middle High German ruowe (mention)
Proto-West Germanic *rōu (inherited)
Old High German ruowa (inherited)

Yiddish רויִק (affix)