Vow v. t. [imp. & p. p. Vowed p. pr. & vb. n. Vowing.]
  1. To give, consecrate, or dedicate to God, or to some deity, by a solemn promise; to devote; to promise solemnly.  “When thou vowest a vow unto God, defer not to pay it.”
     [Men] that vow a long and weary pilgrimage.   --Shak.
  2. To assert solemnly; to asseverate.