retrogrades

/R EH1 T R AH0 G R EY0 D Z/
noun
  1. 1

    A degenerate person.

  2. 2

    The reversal of a melody so that what is played first in the original melody is played last and what is played last in the original melody is played first.

Source: https://en.wiktionary.org/wiki/retrograde, https://en.wiktionary.org/wiki/retrogrades