PREV'ALENT, adjective Gaining advantage or superiority; victorious. Brennus told the Roman embassadors, that prevalent arms were as good as any title. 1. Powerful; efficacious; successful; as prevalent supplications. 2. Predominant; most generally received or current; as a prevalent opinion. 3. Predominant; most general; extensively existing; as a prevalent disease.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI