An Etymological Dictionary of the German Language/Schuh
Schuh, m., ‘shoe,’ from the equiv. MidHG. schuoch (h), OHG. scuoh, m.; a common Teut. word; comp. the equiv. OSax. skôh, Du. schoen, AS. sčęôh, E. shoe, OIc. skór, Goth. skôhs, m., which point to primit. Teut. skôha-, skôhwa-, from pre-Teut. *skõqos. A pre-Teut. verbal root skē̆q (skō̆q) appears in Goth. skêwjan, OIc. skœ́va, ‘to go,’ and in schicken; hence Schuh, ‘walking gear’?. See further Schuster.