She promised the dwarfs that she would certainly not let anyone inside again.
They hoped that the Americans would bring the stability, security and democracy they promised.
She promised me that she will give much thought to this question, so I am staying tuned.
c.1400, "a pledge, vow," from Old French promesse "promise, guarantee, assurance" (13c.) and directly from Latin promissum "a promise," noun use of neuter past participle of promittere "send forth; let go; foretell; assure beforehand, promise," from pro- "before" (see pro-) + mittere "to put, send" (see mission). The ground sense is "declaration made about the future, about some act to be done or not done."