A voyager or traveler of knowledge, understanding and learning. Aka, an academic, scholar, or other knowledge-seeking individual. Comes from the Greek episteme--meaning knowledge, and the also Greek nautes--meaning sailor. Similar (and inspired by) astronaut. (From the Greek astron--star, and nautes--sailor, (again).

A much better term for a geek or bookworm.

Appropriate for resumes and embroidered pillows.

Not to be confused with pistenaut, which means sailor of urine. Comes from... well.

Literally everyone, ever. Including the writer of this definition.