Irish gual

← English coal (cognate)

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

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

← Old Irish gúal (inherited)

→ Persian زغال (cognate)

→ Irish gualmhianach (affix)

→ Irish clochghual (affix)

→ Irish gualach (mention)

→ Irish gualaigh (affix)