From Middle English strele, stral, from Old English strǣl (“arrow, shaft, dart, missile”), from Proto-West Germanic *strālu (“arrow, ray, beam”), from Proto-Indo-European *strēl- *strēlā- (“arrow, beam”). Cognate with West Frisian striel (“arrow, dart, shaft”), Dutch straal (“radius, ray, beam, stream”), German Strahl (“beam, ray, spurt”), Swedish stråle (“beam, ray”), Icelandic strjál (“arrow”), Lithuanian strėlė (“arrow, dart, jib”), Russian стрела (strela, “arrow, dart”). See also streel.