vaunt 
(vônt, v
ŏnt)
v. vaunt·ed, vaunt·ing, vaunts
v.tr. To speak or write about (something) in a strongly positive way; praise or boast about.
v.intr. To speak boastfully; brag. See Synonyms at boast1.
n.1. A boastful remark.
2. Speech of extravagant self-praise.
[Middle English vaunten, from Old French vanter, from Late Latin vānitāre, to talk frivolously, frequentative of Latin vānāre, from vānus, empty; see euə- in the Appendix of Indo-European roots.]
vaunter n.
vaunting·ly adv.