The Latin word volvere, meaning “to roll” or “to turn around,” gives us the root volv. Words from the Latin volvere have something to do with turning. To revolve is to turn in circles or travel on a circular path. To evolve, or grow or develop out of something else, is to unroll from a source. To involve, or include, is to roll someone into a situation.
Medical Definition of EVOLVE
: to produce by natural evolutionary processes
: to develop by or as if by evolution : undergo evolutionary change <an evolving theory of mental functioning—S. A. Green>