Welsh huddygl

← Breton huzel (cognate)

← Proto-Brythonic *sūdikul (mention)

← Proto-Celtic *sūdiā (derived)

← English soot (cognate)

← Proto-Indo-European *suh₃d- (derived)

← Proto-Indo-European *sh₃ud- (mention)

← Cornish hudhygel (cognate)

← Old Irish suide (cognate)

→ Breton huzel (cognate)

→ Welsh huddyglyd (affix)

→ Irish súiche (cognate)

→ Scottish Gaelic sùith (cognate)