[ verb ri-gres; noun ree-gres ]
/ verb rɪˈgrɛs; noun ˈri grɛs /

verb (used without object)

to move backward; go back.
to revert to an earlier or less advanced state or form.


the act of going back; return.
the right to go back.
backward movement or course; retrogression.


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Origin of regress

1325–75; Middle English regresse (noun) < Latin regressus a returning, going back, equivalent to re- re- + -gred-, combining form of gradī to step, walk, go + -tus suffix of v. action, with dt > ss



re·gres·sor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for regressor


verb (rɪˈɡrɛs)

(intr) to return or revert, as to a former place, condition, or mode of behaviour
(tr) statistics to measure the extent to which (a dependent variable) is associated with one or more independent variables

noun (ˈriːɡrɛs)

the act of regressing
movement in a backward direction; retrogression
logic a supposed explanation each stage of which requires to be similarly explained, as saying that knowledge requires a justification in terms of propositions themselves known to be true

Derived forms of regress

regressor, noun

Word Origin for regress

C14: from Latin regressus a retreat, from regredī to go back, from re- + gradī to go
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012