Use "sure of oneself" in a sentence
1. 1570s, “self-reliant, sure of oneself,” from Middle French confident, from Latin Confidentem (nominative confidens) “firmly trusting, reliant, self-confident, bold, daring,” present participle of confidere (see confidence).
2. 1570s, "self-reliant, sure of oneself," from Middle French confident, from Latin Confidentem (nominative confidens) "firmly trusting, reliant, self-confident, bold, daring," present participle of …