Be*calm" (?), v. t. [imp. & p. p. Becalmed (); p. pr. & vb. n. Becalming.]
To render calm or quiet; to calm; to still; to appease.
Soft whispering airs . . . becalm the mind.
To keep from motion, or stop the progress of, by the stilling of the wind; as, the fleet was becalmed.
© Webster 1913.