An ordering that makes things findable, and a body of people arranged for a purpose. Both are structure imposed so work can happen.
Medieval Latin organizare (to furnish with organs, to organize), from Latin organum (instrument), from Greek organon; structure imposed on parts so a body of people, or a set of things, can work as one.
Both the imposing of a findable order and a body of people arranged for a purpose. Either way, it is structure put in place so work becomes possible.