retrocede

verb

Etymology: Ultimately from Latin retrōcēdere, from retrō- (“back, backward”) + cēdere (“to go, go back, give, return, etc.”). Equivalent to retro- + cede.

1. To grant back.

   “to retrocede a territory to a former proprietor”

2. To go back.

   “Hospitals retrenched in the '30s while the general practitioners retroceded into a bygone era.”