→
Aragonese uno (inherited)
→
Asturian unu (inherited)
→
Corsican un (inherited)
→
Spanish uno (inherited)
→
Ancient Greek οἶος (cognate)
→
Italian uno (inherited)
→
Ligurian un (inherited)
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Piedmontese un (inherited)
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Portuguese um (inherited)
→
Portuguese unir (derived)
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Romanian un (inherited)
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Romanian unu (inherited)
→
Old Portuguese ũu (inherited)
→
Istro-Romanian ur (inherited)
→
Aromanian unu (inherited)
→
Megleno-Romanian unu (inherited)
→
Sardinian unu (inherited)