zenzizenzicubehttp://www.oed.com/dictionary/zenzizenzicube_n%3Ftab%3Dmeaning_and_usezenzizenzicube, n.
First published 2018

† zenzizenzicubenoun

Mathematics. rare. Obsolete.
  1. a1690
    The square of the square of a cubic number; the 12th power of a number.
    1. a1690
      The little Issuants at Top denote the Table may be increased as occasion requires, though this reaching to Zenzizenzicubes be large enough for Example.
      S. Jeake, Λογιστικηλογία (1696) 202

Originally published as part of the entry for zenzi-, comb. form

zenzizenzicube, n. was first published in 2018.