from
The Collaborative International Dictionary of English v.0.48
Boast \Boast\, v. t.
1. To display in ostentatious language; to speak of with
pride, vanity, or exultation, with a view to
self-commendation; to extol.
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Lest bad men should boast
Their specious deeds. --Milton.
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2. To display vaingloriously.
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3. To possess or have; as, to boast a name.
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{To boast one's self}, to speak with unbecoming confidence
in, and approval of, one's self; -- followed by of and the
thing to which the boasting relates. [Archaic]
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Boast not thyself of to-morrow. --Prov. xxvii.
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