becalm

verb2

1. •
   To deprive (a ship) of wind, so that it cannot move (usually in passive).

   • […] there we were becalmed the .xx. day of Nouember from .vi. of the clocke in the mornynge vntyll foure of the clocke at after none. — 1555
2. •
   (no longer used) To make calm or still; make quiet; calm.

   • Almighty Beauty quite becalms my Rage: In looking on thee, I forget thy Crimes: — 1717