ply

ply [-ing, plied, plies] v

ME plye, apply.

  1. Use; put to work; employ; busy; make useful; engage in service.
  2. Work; labor; toil; persevere; persist; [fig.] dig.
  3. Bustle; clamber; scramble; move about busily; [fig.] move; fly.
  4. [Fig.] occur; happen; take place; proceed; continue.1494/excl. The competitions of the sky / Corrodeless ply.