ας (ἡ) :
   I au propre :
      1 circonférence, périphérie, T. LOCR. 100 e ; ARSTT. Nic. 1, 13, 10, etc. ;
      2 partie d’un cercle, arc d’un cercle, ARSTT. Phys. 8, 8, 32 ; EUCL. Elem. 3, 28 ;
      3 rondeur, HPC. Art. 827 ;
   II fig. action de sortir du droit chemin, erreur, SPT. Eccl. 9, 3.

Étym. περιφερής.

Ion. περιφερείη, ἡ, circumference, κύκλου Heraclit. 103 ; (rounded) surface, σφαίρας Ti.Locr. 100e ; of helmets, Plu. Cam. 40 (pl.); τὰ ὦτα ἐπὶ τῆς αὐτῆς π. τοῖς ὄμμασι Arist. HA 494b14; more generally, curve, Id. EN 1102a31; curvature of the edge of a leaf, Thphr. HP 3.10.5 ; roundness, Hp. Art. 61 ; spherical or curved shape, Epicur. Ep. 2 pp. 49, 51U.
arc of a circle, Arist. Ph. 264b25, Euc. 3.28; marked on concave sun-dial (< πόλος), Sammelb. 358.1 (iii BC).
wandering, error, ἐν καρδίᾳ LXX Ec. 9.3.

ἡ, das Herumgehen, sich Herumbewegen, der Umlauf, bes. Umfang eines runden Dinges, Peripherie, Tim.Locr. 100e ; Rundung, runder Körper, Sp., wie Plut. öfter.

1. the line round a circular body, a periphery, circumference , [Aristotle Philosopher (Refs 4th c.BC)]
2. the outer surface , [Plutarch (1st/2nd c.AD)]
3. a round body , [Plutarch (1st/2nd c.AD)]
from περιφερής (ML)