Wordnet 3.0
NOUN (1)
1.
someone who makes a solemn promise to do something or behave in a certain way;
- Example: "young vowers of eternal love"- Example: "there are many vowers of chastity but few who observe it"
The Collaborative International Dictionary of English v.0.48:
Vower \Vow"er\, n.
One who makes a vow. --Bale.
[1913 Webster]
WordNet (r) 3.0 (2006):
vower
n 1: 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"