An Etymological Dictionary of the German Language/schrill

by Friedrich Kluge

schrill, adj., ‘shrill,’ ModHG. only, formed from the equiv. LG. schrell; comp. MidE. schrillen, E. to shrill, AS. scralletan, ‘to sound loudly,’ Scand. skrölta, ‘to sound loudly.’ Teut. and Aryan root skrel, skral.