ETYM Latin peripheria, Greek; peri around + ferein to bear, carry: cf. French périphérie.
The outside boundary or surface of something; SYN. fringe, outer boundary.
Perimeter, especially of round object or surface; area of termination of nerves.

ETYM Pref. a- + round.
1. By a circular or circuitous route.
2. In a circle or circular motion.
3. In circumference.
4. To a particular destination either specified or understood.