— regressor , n.
v. /ri gres"/ ; n. /ree"gres/ , v.i.
1. to move backward; go back.
2. to revert to an earlier or less advanced state or form.
n.
3. the act of going back; return.
4. the right to go back.
5. backward movement or course; retrogression.
[ 1325-75; ME regresse (n.) regressus a returning, going back, equiv. to re- RE- + -gred-, comb. form of gradi to step, walk, go + -tus suffix of v. action, with dt > ss ]
Syn. 1. revert, retreat, backslide, lapse, ebb.