'Vower' definitions:

Definition of 'vower'

From: WordNet
noun
Someone who makes a solemn promise to do something or behave in a certain way; "young vowers of eternal love"; "there are many vowers of chastity but few who observe it"

Definition of 'Vower'

From: GCIDE
  • Vower \Vow"er\, n. One who makes a vow. --Bale. [1913 Webster]