winghold

noun2

1. •
   A hold or grasp of the wing.
2. •
   (literary) Stability of the wings in flying; a seeming purchase of the air made by a flying bird.

   • Swerving and twisting away from the misty lower air, he rises to the first faint warmth of sun, feels delicately for winghold on the sheer fall of sky. — 1967