Sure1, a.
(shur), a. [compar. SURER; superl. SUREST.]
[Fr. sûr, O. Fr. seür, segur, Pr. segur. See SECURE.]
Sense 1. Certainly knowing and believing; confident beyond doubt; implicitly trusting; unquestioning; positive.
We are sure that the judgment of God is according to truth, against them which commit such things. Rom. ii. 2.
I'm sure care's an enemy of life. Shak.
Sense 2. Certain to find or retain; as, to be sure of game; to be sure of success; to be sure of life or health.
Sense 3. Fit or worthy to be depended on; certain not to fail or disappoint expectation; unfailing; strong; permanent; enduring. “Which put in good sure leather sacks.” Chapman.
The Lord will make my lord a sure house. 1 Sam. xxv. 28.
The testimony of the Lord is sure. Ps. xix. 7.
Sense 4. Betrothed; engaged to marry. [Obs.]
The king was sure to Dame Elizabeth Lucy, and her husband before God. Sir T. More.
I presumed (for so your words did intimate to me) that you had been sure, as fast as faith could bind you, man and wife. Brome.
To be sure, or be sure, certainly; without doubt; as, Shall you go? To be sure I shall. — To make sure. (a.) To make certain; to secure so that there can be no failure of the purpose or object. “Make sure of Cato.” Addison. “A peace can not fail, provided we make sure of Spain.” Sir W. Temple. (b.) To betroth.
She that's made sure to him she loves not well. Cotgrave.
Synonyms— Certain; unfailing; infallible; safe; firm; permanent; steady; stable; strong; secure; indisputable; confident; positive.