vaunt
Concise Oxford English Dictionary © 2008 Oxford University Press:
vaunt /vɔːnt/
▶verb (usu. as adj. vaunted) boast about or praise (something) excessively. ▶noun archaic a boast.
– derivatives
vaunter noun,
vaunting adjective,
vauntingly adverb.
vaunter noun,
vaunting adjective,
vauntingly adverb.
– origin ME: the noun a shortening of obs. avaunt ‘boasting, a boast’; the verb from OFr. vanter, from late L. vantare, based on L. vanus ‘vain, empty’.
'vaunt' also found in these Oxford entries:

