From The Collaborative International Dictionary of English v.0.44 [gcide]:
Assure \As*sure\, verb (used with an object) [imp. & p. p. {Assured}; p. pr. & vb. n. {Assuring}.] [OF. ase["u]rer, F. assurer, LL. assecurare; L. ad + securus secure, sure, certain. See {Secure}, {Sure}, and cf. {Insure}.]
1. To make sure or certain; to render confident by a promise, declaration, or other evidence.
His promise that thy seed shall bruise our foe . . . Assures me that the bitterness of death Is past, and we shall live. --Milton.
2. To declare to, solemnly; to assert to (any one) with the design of inspiring belief or confidence.
I dare assure thee that no enemy Shall ever take alive the noble Brutus. --Shak.
3. To confirm; to make certain or secure.
And it shall be assured to him. --Lev. xxvii. 19.
And hereby we know that we are of the truth, and shall assure our hearts before him. --1 John iii. 19.
4. To affiance; to betroth. [Obs.] --Shak.
5. (Law) To insure; to covenant to indemnify for loss, or to pay a specified sum at death. See {Insure}.
Syn: To declare; aver; avouch; vouch; assert; asseverate; protest; persuade; convince.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Assuring \As*sur"ing\, adjective That assures; tending to assure; giving confidence. -- {As*sur"ing*ly}, adverb
From WordNet (r) 2.0 [wn]:
adjective
1: giving confidence
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