—v.
1 intr. boast, brag.
2 tr. boast of; extol boastfully.
—n. a boast.
Derivatives:
vaunter n. vauntingly adv.
Etymology: ME f. AF vaunter, OF vanter f. LL vantare f. L vanus VAIN: partly obs. avaunt (v.) f. avanter f. a- intensive + vanter
Useful english dictionary. 2012.