Portuguese água

← Catalan aigua (cognate)

← Spanish agua (cognate)

← French eau (cognate)

← Galician auga (cognate)

← Proto-Indo-European *h₂ekʷeh₂ (inherited)

← Italian acqua (cognate)

← Proto-Italic *akʷā (inherited)

← Latin aqua (inherited)

← Occitan aiga (cognate)

← Romanian apă (cognate)

← Old Portuguese agua (inherited)

→ Spanish agua (cognate)

→ Annobonese aua (derived)

→ Kabuverdianu aga (derived)

→ Kabuverdianu agu (derived)

→ Kabuverdianu águ (derived)

→ Papiamentu awa (derived)

→ Guinea-Bissau Creole iagu (derived)

→ Portuguese aguar (affix)

→ Portuguese aguardente (affix)

→ Portuguese antiágua (affix)

→ Portuguese aguaçal (suffix)