Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin optimus
← Proto-Indo-European *h₁epi (derived)
← Proto-Indo-European *h₃ep- (derived)
← Latin ob (mention)
← Latin ops (mention)
← Latin opus (mention)

→ English optimum (derived)
→ English optimal (mention)
→ English optimist (derived)
→ English optimity (mention)
→ Old English formest (cognate)
→ Catalan òptim (derived)
→ Greek οπτιμιστής (mention)
→ Spanish optimismo (derived)
→ Spanish óptimo (derived)
→ Spanish optimista (derived)
→ French optime (borrowed)
→ French optimisme (derived)
→ Galician optimismo (derived)
→ Galician optimista (derived)
→ Hebrew אופטימי (derived)
→ Hungarian optimizmus (derived)
→ Italian ottimo (inherited)
→ Latin ops (mention)
→ Latin optime (suffix)
→ Latin optime (link)
→ Latin optime (mention)
→ Latin -issimus (mention)
→ Latin optimas (mention)
→ Latin optumas (mention)
→ Norwegian Bokmål optimisme (derived)
→ Dutch optimist (derived)
→ Dutch optimisme (derived)
→ Norwegian Nynorsk optimisme (derived)
→ Polish optymista (derived)
→ Polish optymalny (derived)
→ Portuguese ótimo (inherited)
→ Ukrainian оптимальний (derived)