Asseverate is not unlike its synonym aver, albeit possessing six more letters and two more syllables. And when writing about assertion, confirmation, emphatic truth or bold declaration it is damned handy to have them both.
Asseverate As*sev"er*ate, v. t. [imp. & p. p. Asseverated;
p. pr. & vb. n. Asseverating.] [L. asseveratus, p. p. of
asseverare to assert seriously or earnestly; ad + severus.
To affirm or aver positively, or with solemnity.
Syn: To affirm; aver; protest; declare. See Affirm.
-- From The Collaborative International Dictionary of English v.0.48
v : state categorically [syn: assert, maintain]
-- From WordNet (r) 2.0
57 Moby Thesaurus words for "asseverate":
acknowledge, affirm, allege, announce, annunciate, argue, assert,
assever, attest, aver, avouch, avow, bear witness, certify,
confess, contend, declare, depone, depose, disclose, enunciate,
express, express the belief, give evidence, have, hold, insist,
issue a manifesto, lay down, maintain, manifesto, nuncupate,
predicate, proclaim, profess, pronounce, protest, put, put it,
quote, recite, relate, say, set down, speak, speak out, speak up,
stand for, stand on, state, submit, swear, testify, vouch, vow,
-- From Moby Thesaurus II by Grady Ward, 1.0