regressing

/R AH0 G R EH1 S IH0 NG/
verb
  1. 1

    To move backwards to an earlier stage; to devolve.

  2. 2

    To move from east to west.

  3. 3

    To perform a regression on an explanatory variable.

    โ€œWhen we regress Y on X, we use the values of variable X to predict those of Y.โ€

Source: https://en.wiktionary.org/wiki/regress, https://en.wiktionary.org/wiki/regressing