perigon

perigon [per-i-gon] Word Origin noun

1. an angle of 360°.

Origin of perigon First recorded in 1865–70; peri- + -gon Also called round angle. British Dictionary definitions for perigon perigon noun

1. an angle of 360°Also called: round angle

Word Origin for perigon C19: from peri- + Greek gonia angle