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 *reg-

→ English regular (derived)
→ English insurgent (derived)
→ English riches (derived)
→ Catalan ric (derived)
→ Persian رنگ (cognate)
→ Persian رخش (cognate)
→ Middle French droict (derived)
→ Hindi रंग (root)
→ Hindi रंग (derived)
→ Hindi रंजन (root)
→ Hindi रंजित (root)
→ Hindi रंगोली (root)
→ Interlingua ric (derived)
→ Indonesian reguler (derived)
→ Northern Kurdish reş (derived)
→ Latvian redzēt (derived)
→ Marathi रांगोळी (root)
→ Old Prussian rīki (derived)
→ Old Prussian rikīs (inherited)
→ Old Occitan ric (derived)
→ Sanskrit रक्त (cognate)
→ Sanskrit रङ्ग (root)
→ Sanskrit रङ्ग (derived)
→ Sanskrit रञ्जन (root)
→ Sanskrit रञ्ज् (root)
→ Sanskrit रञ्ज् (inherited)
→ Sanskrit रङ्गिन् (root)
→ Sanskrit रञ्जित (root)
→ Swedish regn (mention)
→ Urdu رنگولی (root)