zoundshttp://www.oed.com/dictionary/zounds_v%3Ftab%3Dmeaning_and_usezounds, v.
First published 1921; not fully revised

† zoundsverb

obsolete.
  1. 1680
    (intransitive) to exclaim ‘zounds’.
    Apparently an isolated use.
    1. 1680
      When he loses upon the Square, he comes home Zoundzing and Blooding.
      J. Dryden, Kind Keeper iv. i. 39

Originally published as part of the entry for zounds, int.

zounds, int. was first published in 1921; not fully revised.