Franco-Provençal lac

← Aragonese laco (cognate)

← Catalan llac (cognate)

← Esperanto lago (cognate)

← Spanish lago (cognate)

← French lac (cognate)

← Proto-Indo-European *lókus (inherited)

← Italian lago (cognate)

← Proto-Italic *lakus (inherited)

← Latin lacus (inherited)

← Maltese lag (cognate)

← Portuguese lago (cognate)

← Romanian lac (cognate)

← Sardinian lagu (cognate)