Apparently from sweet + bread, though the reason is not immediately evident. Possibly connected with Dutch zwezerik, whose etymology is also unclear.
sweetbread (plural sweetbreads)
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You can also try words with the phrase SWEETBREAD, words starting with the letters SWEETBREAD, or words ending in the letters SWEETBREAD.
Words… ending with q, starting with q, starting with qa, starting with qo, with two letters, starting with x, starting with j, ending with j,
Some random searches:
JRJOU, QPIVFRF, ZNYUD, ZLLVTA, GRZGRYZ, CHVVOPY,