An Etymological Dictionary of the German Language/Stuhl
Stuhl, m., ‘chair, seat,’ from the equiv. MidHG. and OHG. stuol, m.; corresponding to OSax. stôl, Du. stoel, AS. stôl, E. stool, OIc. stóll. A common Teut. noun, derived from the Aryan root stā̆, ‘to stand’ (see stehen), or from the Aryan root stal, ‘to put, place’ (see stellen), hence Stuhl, lit. ‘stand, frame’?. It corresponds in the non-Teut. languages to Lith. pastólas, ‘stand, frame,’ OSlov. stolŭ, ‘seat, throne,’ Gr. στήλη, ‘pillar.’