Breton del

← Old English dile (cognate)

← Proto-Brythonic *döl (inherited)

← Proto-Celtic *dolyā (inherited)

← Proto-Celtic *dolnyā (mention)

← Welsh dail (cognate)

← Ancient Greek θάλλω (cognate)

← Proto-Indo-European *dʰelh₁- (root)

← Proto-Indo-European *dʰelh₁- (derived)

← Middle Irish duille (cognate)

← Old Irish duilne (cognate)

← Old Armenian դալար (cognate)

→ Breton delienn (mention)

→ Welsh dail (cognate)