σαφής

Etymology
Most likely. Connections to 🇨🇬 can be dismissed based on the fact that ph comes from an aspirated PIE consonant.

Adjective

 * 1)  clear, distinct
 * 2)  speaking clearly, reliable
 * 1)  speaking clearly, reliable
 * 1)  speaking clearly, reliable

Adjective

 * 1) clear, explicit