unfill

un- +‎ fill

unfill (third-person singular simple present unfills, present participle unfilling, simple past and past participle unfilled)

1. (transitive) To empty.
   • 1606, Thomas Middleton, The Revenger's Tragedy, act ii, scene 2:

     I'll pierce him to his face; he shall die looking upon me. Thy veins are swell'd with lust; this shall unfill 'em.

   • 2017, Peter Sander, Free Stuff Guide for Everyone Book:

     But with today's fewer and more crowded flights, it's on the upswing again—a flight is overbooked (oversold) and the airline must find volunteers to not fly. The compensation varies by how desperate they are to unfill the plane […]

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