retrocede
verb
ret·ro·cede ˌre-trō-ˈsēd 
retroceded; retroceding
intransitive verb
: to go back : recede
transitive verb
[French rétrocéder, from Medieval Latin retrocedere, from Latin retro- + cedere to cede] : to cede back
retrocede a territory
retrocession
ˌre-trō-ˈse-shən
noun 
Did you know?
Retrocede is a 17th-century adaptation of Latin retrocēdere, which was formed by combining the prefix retro-, meaning "back" or "backward," with the verb cēdere, "to go or move away." Retrocede has a bit of a twist, however, because cēdere can also mean "cede" ("to yield or assign") and English cede traces back through French and Latin to this other meaning of cēdere. Other descendants of cēdere include accede, concede, intercede, precede, recede, secede, and even cede itself.
Example Sentences
Recent Examples on the Web The South Dakota congressional delegation largely shares his view: Rep. Dusty Johnson (R) filed a bill last month to retrocede the District to Maryland. 
Washington Post, 26 Feb. 2021
Washington Post, 26 Feb. 2021 Word History
Etymology
Latin retrocedere, from retro- + cedere to go, cede
First Known Use
1638, in the meaning defined at intransitive sense