psocho describes the disciples’ hand-rubbing of grain heads before eating them.

The attested use describes rubbing grain heads with the hands as the disciples pluck and eat them in Luke 6:1.

1. Rubbing grain heads by hand · dominant

   In Luke 6:1, ψώχοντες is a present active participle, nominative plural masculine, used of the disciples as they pluck heads of grain and eat them; the APB renders the action as “rubbing them with their hands.”

   Luke 6:1

In the Anselm Project Bible: In Luke 6:1 the APB presents the action as “rubbing them with their hands,”.