From deca- (ten) +‎ -ple (multiply) +‎ -et (forming diminutives); in ignorance of existence of decuplet.


decaplet (plural decaplets)

  1. Alternative form of decuplet.
    • 1956, Peter Fleming, My Aunt's Rhinoceros, and Other Reflections[1],], page 78:
      "Medical opinion is that reported instances of multiple [human] births in excess of seven must be looked on with great suspicion," they write sternly; yet they do not deny us a somehow tantalizing glimpse of Ann Birch who, in 1781, is alleged to have produced decaplets of whom one girl survived to marry a Mr. Platt of Leeds.
    • 1989 July 30, "For the Record"[2], Chicago Sun-Times, page 4:
      There have been three cases reported of decaplets - multiple births of 10 children.