The definition of evolve is to develop gradually or set free.(verb)
An example of evolve is bettering your yoga skills by doing more yoga.
See evolve in Webster's New World College Dictionary
Origin: L evolvere, to roll out or forth < e-, out + volvere, to roll: see walk
See evolve in American Heritage Dictionary 4
verb e·volved, e·volv·ing, e·volves verb, transitive
Origin: Latin ēvolvere, to unroll
Origin: : ē-, ex-, ex-
Origin: + volvere, to roll; see wel-2 in Indo-European roots.
Learn more about evolve