Old Portuguese en

← Proto-Indo-European *h₁én (inherited)

← Proto-Italic *en (inherited)

← Latin in (inherited)

→ Fala en (inherited)

→ Galician en (inherited)

→ Galician no entanto (mention)

→ Kabuverdianu na (mention)

→ Papiamentu na (mention)

→ Guinea-Bissau Creole na (mention)

→ Portuguese em (inherited)

→ Portuguese na (mention)

→ Portuguese nos (mention)

→ Portuguese no (mention)

→ Portuguese enquanto (mention)

→ Portuguese entanto (mention)