Voadam
Legend
Not quite.Well, no. D&D Wizard spells came directly from Jack Vance's Dying Earth series. I thought everyone knew that.
D&D spells started out as chainmail spells (fireball, lightning bolt, cloudkill, hallucinatory terrain) which were magic analogues for artillery, howitzers, and mustard gas and such for turning miniatures wargaming from Napoleonic and WWI to fantasy.
Vance came in as the Vancian spell slot system in D&D of a few powerful memorized/prepared spells at a time that get used up as one shots when cast until prepared again. Also some individual spells like prismatic spray and the sytlism of giving fantastical names to certain idiosyncratic spells like Tenser's floating disc and Bigby's grasping hand.