late Middle English (in the senses turn (the eyes) back, restore, consider): from Latin revolvere, from re-back (also expressing intensive force) + volvereroll
英英释义网络释义
vern
1.turn on or around an axis or a center;
The Earth revolves around the Sun
2.move in an orbit;
The moon orbits around the Earth
3.cause to move by turning over or in a circular manner of as if on an axis;