Old Irish bréc

← Proto-Celtic *brenkā (inherited)

← Proto-Indo-European *bʰrenḱ- (derived)

← Sanskrit भ्रंश (cognate)

→ Welsh breg (borrowed)

→ Irish bréag (inherited)

→ Irish bréagnaigh (mention)

→ Scottish Gaelic breug (inherited)

→ Manx breagerey (derived)

→ Manx breag (inherited)

→ Sanskrit भ्रंश (cognate)

→ Old Irish brécach (affix)