Glad to have you autoataraxic. When I search i don't bring up much other than an article written by Elli Pensa, a friend of ours in Greece a couple of years ago. I don't find any historic use of it from the ancient world.
My read of Elli's article is that it is sort of an artistic flourish but not intended to be a major philosophical point. Certainly Epicurus held that atoms are not living things, and I don't think he would say that the swerve of the atom is a living function either. Of course at some point life does "emerge" from the motion of the atoms through the void, and Lucretius talks about the swerve being related to "free will," so there is at least some relevance.
Probably going further in discussing this would be helped by a little background on your interest in it (?)
I suspect our friend Bryan here might have the best thoughts on usages, but thereagain knowing the context of your question would probably help.