“Then there is always the feeling of elation, the feeling of perfect health, the absolute sureness that all is well.”
“He felt genuinely drawn to the intelligence of people from the sink estates in the banlieue, the swiftness of their reactions, the sureness of their instincts.”
“Think of your father, of his coolness, his sureness in times of great crisis.”
suretyship
(law) An accessory agreement through which a person binds themselves for another already bound, either in whole or in part, as for their debt, default or miscarriage; the assumption of liability for the obligations of another.