zend-avestaichttp://www.oed.com/dictionary/zend-avestaic_adj%3Ftab%3Dmeaning_and_useZend-Avestaic, adj.
Revised 2018

† Zend-Avestaicadjective

Obsolete rare.
  1. 1816
    Of or relating to the Zend-Avesta, or the ancient Iranian language in which the Avesta is written.
    Stressed as Zend-Aveˈstaic.
    1. 1816
      The materials of the Zend-Avestaic history seem to be genuine.
      G. S. Faber, Origin of Pagan Idolatry vol. I. p. xxxii

Originally published as part of the entry for Zend-Avesta, n.

Zend-Avesta, n. was revised in June 2018.