Eloquent (adjective)

1. Having or characterized by the power to speak or write well and persuasively.
2. Expressing oneself readily, clearly, effectively.
3. Having a fluent and persuasive speaking or writing style.

Origin:

From latin eloquentem, from eloqui "to speak out".

Examples:

1. He was an eloquent speaker who could captivate his audience.
2. She was an eloquent writer who could convey complex ideas simply.
3. His eloquence was evident in his speeches.
4. Her eloquence impressed the judges.
5. His writing was eloquent and persuasive.