περιφερ-ής, ές,
revolving, ὢν δὲ π. (i.e. ὁ ἐνιαυτὸς) τελευτὴν οὐδεμίαν οὐδ᾽ ἀρχὴν ἔχει [[ 5th c.BC: Hermippus Comicus 4 ] Refs 5th c.BC+]; π. ὀφθαλμοί rolling eyes, [[ 2nd c.AD: Lucianus Sophista “JTr.” 30. ] Refs 2nd c.AD+]
__2 rounded or curved,
__2.a of surfaces and lines, ἄκρον [[ 5th c.BC: Hippocrates Medicus “περὶ ἄρθρων ἐμβολῆς” 7; π. κύρτωμα [prev. author] “Epid.” 1.26. α; κύλικες 5th c.BC: Pherecrates Comicus 143.5; ἀσπίδες 2nd-3rd c.AD: Aelianus “Tactica - Griechische Kriegsschriftsteller” 2.7 ] Refs 5th c.BC+]; τὰ στρογγύλα τε καὶ π. [[ 5th c.BC: Hippocrates Medicus “περὶ τῶν ἐν κεφαλη—ͅ τρωμάτων” 11 ] Refs 5th c.BC+]; opposed to εὐθύς, [[ 5th-6th c.BC: Plato Philosophus “Parmenides” 137e, 138a, 4th c.BC: Aristoteles Philosophus “Physica” 248a12, +others] Refs 5th c.BC+]; τὸ π. circularity, [[ [prev. author] “Anthologia Graeca” 0.73a39] Refs]; but, circumference, [[ 5th-6th c.BC: Plato Philosophus “Respublica” 436e, 1st c.AD: Dioscorides (Dioscurides) Medicus 3.6, 48. ] Refs 5th c.BC+] adverb -ρῶς in a rounded shape, [[ 5th c.AD: Proclus Philosophus “Hypotyposis astronomicarum positionum” 3.6. ] Refs 5th c.AD+]
__2.b of bodies, spherical, globular, [[ 3rd c.AD: Democritus Epigrammaticus 164, 5th-6th c.BC: Plato Philosophus “Phaedo” 108e, “Smp.” 190b; π. τὸ σχῆμα τῆς γῆς 4th c.BC: Aristoteles Philosophus “de Caelo” 298a7; π. σχηματισμός 4th-3rd c.BC: Epicurus Philosophus “Epistulae” 2p.50U. ] Refs 5th c.BC+]; [σώματα] [[ 1st c.BC: Philodemus Philosophus “de Morte - Papiri Ercolanesi” 8 (_superlative_)] Refs 1st c.BC+]; π. στέγαι domed, [[ 4th c.BC: Demetrius Phalereus Rhetor “Demetrius on Style” 13. ] Refs 4th c.BC+]