For starters, devolve is not the opposite of evolve.
When people misuse this word, they often think of it as a negative evolutionary change. Like, if humans got dumber, they would call it devolving. But this is incorrect. Here is what devolve actually means:
1. To pass on or delegate to another: The senator devolved the duties of office upon a group of aides.
2. To be passed on or transferred to another: The burden of proof devolved upon the defendant. The estate devolved to an unlikely heir.
3 To degenerate or deteriorate gradually: After several hours the discussion had devolved into a shouting match.