Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latin regula
← Proto-Indo-European *h₃reǵ- (root)
← Latin regō (affix)
← Latin -ula (affix)

→ English rail (derived)
→ English rule (derived)
→ English rule (mention)
→ English regulate (mention)
→ English regula (borrowed)
→ English regulize (mention)
→ Old English regol (borrowed)
→ Atong (India) reel (derived)
→ Catalan reixa (mention)
→ Welsh rheol (derived)
→ Danish regulær (mention)
→ German Reling (derived)
→ French règle (borrowed)
→ Old French reule (borrowed)
→ Galician reixa (derived)
→ Galician rello (derived)
→ Hungarian regulatívum (mention)
→ Indonesian rel (derived)
→ Icelandic regla (borrowed)
→ Latin regulo (mention)
→ Luxembourgish Regel (derived)
→ Norwegian Bokmål regel (derived)
→ Norwegian Bokmål regle (derived)
→ Norwegian Nynorsk regel (derived)
→ Serbo-Croatian regula (borrowed)
→ Serbo-Croatian регула (derived)
→ Swedish reguladetri (derived)
→ Tagalog rehas (derived)
→ Ukrainian регулювати (mention)