SECTION IV. MOTION
MOTION WITH REFERENCE TO DIRECTION, continued.
[Motion forwards; progressive motion.] Progression –N. progressiveness; advancing; advance; advancement; ongoing; flood-tide, headway; march; rise; improvement.
[Motion backwards.] Regression –N. regress; retrocession, retrogression, retrogradation, retroaction; reculade; retreat, withdrawal, retirement, remigration; recession (motion from); recess; crab-like motion. refluence, reflux; backwater, regurgitation, ebb, return; resilience; reflection (recoil); volte-face. countermotion, countermovement, veering, tergiversation, recidivation, backsliding, fall, relapse; deterioration. turning-point (reversion).
Thesaurus of Words and Phrases by Peter Mark Roget, M.D., F.R.S. Enlarged by John Lewis Roget, M.A., New Edition Revised and Enlarged by Samuel Romily Roget, M.A. Published by Grosset & Dunlap, the edition is copyright 1941, 1947.