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

→ English rich (derived)
→ English Vercingetorix (mention)
→ English rike (derived)
→ Old English rice (mention)
→ Breton roue (mention)
→ Gaulish Suadurix (mention)
→ Gaulish Orgetorix (derived(cel-gau/la))
→ Welsh rhi (inherited)
→ Welsh brëyr (mention)
→ Danish rig (derived)
→ German reich (derived)
→ Middle English riche (derived)
→ Middle English rike (derived)
→ Spanish rico (derived)
→ Faroese ríkur (derived)
→ Faroese ríki (derived)
→ Faroese ríki (derived)
→ North Frisian rik (derived)
→ Irish rí (inherited)
→ Scottish Gaelic rìgh (inherited)
→ Middle High German riche (derived)
→ Middle High German riche (mention)
→ Westrobothnian ritkj (derived)
→ Old High German rihhi (derived)
→ Old High German rihhi (mention)
→ Gothic 𐍂𐌴𐌹𐌺𐍃 (derived)
→ Manx ree (inherited)
→ Icelandic ríkur (derived)
→ Icelandic ríki (derived)
→ Latin Burdigala (mention)
→ Latin Bituriges (compound)
→ Latin Dumnorix (derived)
→ Middle Irish rí (inherited)
→ Norwegian Bokmål rik (derived)
→ Dutch rijk (derived)
→ Dutch rijk (mention)
→ Norwegian Nynorsk rik (derived)
→ Old Norse ríkr (derived)
→ Portuguese rico (derived)
→ Old Irish rí (inherited)
→ Old Irish ríge (inherited)
→ Swedish rik (derived)
→ Swedish rike (derived)