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.