Old French lac

← Middle English lace (mention)

← Old French lai (cognate)

← Old French lai (cognate)

← Old French lac (cognate)

← Proto-Indo-European *lókus (derived)

← Proto-Italic *lakus (derived)

← Latin lacus (borrowed)

← Latin lacus (cognate)

← Old Occitan laz (mention)

← Old Occitan latz (mention)

→ French lac (inherited)

→ French lac (cognate)

→ Old French lac (cognate)

→ Norman lac (inherited)