Home › Words › R › regrederegrederegrede means to go back; to retrograde, as the apsis of a planet's orbit.EtymologyFrom Latin regredi (“to go back”). Compare regrade, regress.verbTo go back; to retrograde, as the apsis of a planet's orbit.e.g.“[…] the instantaneous parabola decreases in magnitude and descends in position throughout the entire motion, while its axis regredes during the ascent and progredes during the descent of the particle.” — 1878, The Educational Times, page 316:Definitions & examples from Wiktionary (CC BY-SA 3.0).