An Etymological Dictionary of the German Language/Bank
Bank, f., ‘bank, bench, reef,’ from the equiv. MidHG. banc, plur. bęnke, OHG. banch, plur. bęnchi, m., f.; comp. AS. bęnc, f., E. bench, OIc. bekkr. Besides the stem banki- (from pre-Teut. bhangi-), Teut. possessed others which are recorded in words borrowed by Romance; comp. Ital. banco, banca, panca, Fr. banc, banque, &c. See the following words.