Verb

(assur)

To make sure and secure.

To give (someone) confidence in the trustworthiness of (something).

I assure you that the program will work smoothly when we demonstrate it to the client.

He assured of his commitment to her happiness.

(obsolete) To guarantee, promise (to do something).

* 1590 , Edmund Spenser, The Faerie Queene , II.ii:

That as a law for euer should endure; / Which to obserue in word of knights they did assure .

To reassure.

Verb

(ensur)

To make a pledge to (someone); to promise, guarantee (someone of something); to assure.

*:

*:Thenne he cryed hym mercy and sayd Faire knyght for goddes loue slee me not / and I shall ensure the neuer werre ageynst thy lady / but be alwey toward her / Thenne Bors lete hym be

To make sure or certain of something (usually some future event or condition).

:

*{{quote-magazine, date=2013-08-10, volume=408, issue=8848, magazine=(The Economist), author=Lexington

, title= Keeping the mighty honest , passage=British journalists shun complete respectability, feeling a duty to be ready to savage the mighty, or rummage through their bins. Elsewhere in Europe, government contracts and subsidies ensure that press barons will only defy the mighty so far.}}