Early 19th century. From classical Latin regredī to go back, return, (specifically, of a celestial object) to exhibit retrograde motion from re- + gradī to go.
Definition of regrede in US English:
regrede
verbrɪˈɡriːd
rare
no objectTo go back; specifically = "regress".
Origin
Early 19th century. From classical Latin regredī to go back, return, (specifically, of a celestial object) to exhibit retrograde motion from re- + gradī to go.