An Etymological Dictionary of the German Language/Annotated/Bütte
Bütte, Butte, feminine, from the equivalent Middle High German büte, bütte, büten, Old High German butin, feminine, ‘tub, butt’; the cognate Low German and English words contain an abnormal medial t; Anglo-Saxon bytt, ‘flagon,’ English butt, Old Icelandic bytta. These indicate that the High German word was borrowed in the Old High German period, when the shifting of t to tz was already accomplished. In the cognates the meaning varies, ‘leather pipe, cask,’ just as in the Romance class from which they were borrowed — Spanish bota, ‘leather pipe,’ French botte, ‘butt.’ To Old High German butin (Middle Latin butina), Middle High German büten, the Modern High German derivative Büttner (from Middle High German bütenœre), ‘cooper’ (likewise a frequent surname), is also related.