Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *h₁reh₁-

→ English Russia (derived)
→ English row (root)
→ English row (inherited)
→ English rudder (root)
→ English rudder (derived)
→ Old English rowan (derived)
→ Welsh rhaw (root)
→ Welsh rhaw (derived)
→ Danish ro (derived)
→ German Rain (derived)
→ Middle Dutch roeyen (derived)
→ Estonian Rootsi (derived)
→ Basque arraun (mention)
→ Finnish Ruotsi (root)
→ Finnish Ruotsi (derived)
→ Meänkieli Ruotti (derived)
→ Faroese rógva (derived)
→ Westrobothnian ro (derived)
→ Ancient Greek ἐρῆμος (derived)
→ Ancient Greek ἐρετμόν (root)
→ Ancient Greek αὐτερέτης (root)
→ Ancient Greek ἐρωή (mention)
→ Ancient Greek ἐρέτης (mention)
→ Indonesian Rusia (derived)
→ Icelandic róa (derived)
→ Latin rete (derived)
→ Latin remus (mention)
→ Latin eremita (derived)
→ Latvian rets (mention)
→ Dutch roer (root)
→ Dutch riem (root)
→ Dutch roeien (root)
→ Dutch roeien (derived)
→ Old Norse róa (derived)
→ Sanskrit अरित्र (mention)
→ Sanskrit ऋते (derived)
→ Old Irish ráid (root)
→ Old Irish rámae (root)
→ Old Irish rámae (derived)
→ Swedish ro (inherited)