circumvolution

noun

cir·​cum·​vo·​lu·​tion sər-ˌkəm-və-ˈlü-shən 

ˌsər-kəm-vō-

: an act or instance of turning around an axis

Word History

Etymology

Middle English cyrcumvolucyoun, borrowed from Medieval Latin circumvolūtiōn-, circumvolūtiō "rotation, revolution," from Latin circumvolū-, variant stem of circumvolvere "to cause to revolve, twine or coil round," from circum- circum- + volvere "to set in a circular course, cause to roll" — more at wallow entry 1

First Known Use

15th century, in the meaning defined above