An Etymological Dictionary of the German Language/heiß

by Friedrich Kluge

heiß, adj., ‘hot, ardent, vehement,’ from the equiv. MidHG. and OHG. heiȥ; comp. Du. heet, AS. hât, E. hot, OIc. heitr; a common Teut. adj. for ‘hot,’ pointing to Goth. *haita-; from the root hī̆t, to which Hitze is akin. This root may be extended from hī̆, with which OHG. an MidHG. hei, gehei, ‘heat’ is connected. See heizen.