Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latin aut
← Ancient Greek αὖ (cognate)
← Ancient Greek αὖτε (mention)
← Ancient Greek αὐτός (mention)
← Ancient Greek αὐτάρ (mention)
← Proto-Indo-European *h₂ewti (derived)
← Proto-Indo-European *h₂ew (mention)
← Latin autem (mention)

→ Aragonese u (inherited)
→ Asturian o (inherited)
→ Asturian u (inherited)
→ Catalan o (inherited)
→ Corsican o (inherited)
→ Esperanto aŭ (mention)
→ Spanish o (inherited)
→ Extremaduran o (inherited)
→ Fala o (inherited)
→ French ou (inherited)
→ Old French ou (inherited)
→ Galician ou (inherited)
→ Italian o (inherited)
→ Latin autem (mention)
→ Ligurian ò (inherited)
→ Ladin o (inherited)
→ Neapolitan o (inherited)
→ Norman ou (inherited)
→ Occitan o (derived)
→ Portuguese ou (inherited)
→ Romansch u (inherited)
→ Romanian au (inherited)
→ Romanian sau (mention)