Liddell-Scott-Jones

σύμμετρος (summetros) well-proportioned ^G:A

σύμμετρος-ος, ον,

(μέτρον) commensurate with, of like measure or size with, σύμμετροςος σῷ ποδί (i.e. ἡ βάσις) [Refs 5th c.BC+]; βόστρυχον.. σύμμετροςον τῷ σῷ κάρᾳ exactly like it, [Refs 4th c.BC+]: especially of Time, commensurate with, keeping even with, δαλὸν ἥλικα ξύμμετρόν τε διαὶ βίου [Refs]; τῷδε τἀνδρὶ σ. being of like age with him, [Refs 5th c.BC+]; ποίᾳ ξύμμετρος προὔβην τύχ; coincident with what chance have I come? i.e. in the very nick of time, [Refs 5th c.BC+]

__2 in Mathematics, having a common measure, σύμμετροςοι αἱ τῷ αὐτῷ μέτρῳ μετρούμεναι (i.e. γραμμαί) [Refs 4th c.BC+]; frequently denied of the relation between the diagonal of a square and its side, [Refs]; [τὸ νόμισμα] πάντα ποιεῖ σύμμετροςα commensurable, [Refs]; μήκει οὐ σύμμετροςοι τῇ ποδιαίᾳ not lineally commensurate with the one-foot side, [Refs 5th c.BC+]: comparative, of musical intervals, ταῖς αἰσθήσεσιν εὐληπτότερα τὰ -ότερα [Refs 2nd c.AD+]
__3 in accord with the metre, [Refs 5th c.BC+]; σύμμετροςοι ἐπεκτύπεον ποδῶν χορείαις in time, [Refs 5th c.BC+]
__II in measure with, proportionable, exactly suitable, λόγοι ἀνδράσι σ. [Refs 5th c.BC+]; γῆ θηρίοις μᾶλλον ἢ ἀνθρώποις σ. [Refs 5th c.BC+]
__II.2 absolutely, in right measure, in due proportion, symmetrical, opposed to ὑπερβάλλων and ἐλλείπων, [Refs 5th c.BC+]
__II.3 generally, fitting, meet, due, ξύμμετρον δ᾽ ἔπος λέγω [Refs 5th c.BC+]; ξύμμετρος ὡς κλύειν within fit distance for hearing, [Refs 5th c.BC+]
__II.4 moderate, πόνοι [σύμμετροςον.. τὸ πνεῦμα.. ποιεῖν 4th c.BC: Antiphanes Comicus 202.16; σ. τροφαί 2nd c.AD: Soranus Medicus 1.26, compare 49, +others">Refs 5th c.BC+]; σ. στέγη moderate in size, [Refs 5th c.BC+]; of suitable size, σκῆπτρον [Refs 3rd c.BC+]
__III adverb -τρως in moderation, [Refs 5th c.BC+]; in due time, ἀφίκετο [Refs 5th c.BC+]; σ. πρὸς ἑωυτόν conveniently, [Refs 5th c.BC+]; σ. ἔχειν πρός τι to be in proportion to.., [Refs 5th c.BC+]; τὸ μετὰ νοῦ καὶ τὸ σ. [Refs 3rd c.BC+]; ={μετρίως},{φέρειν} [Refs 2nd c.BC+] more fittingly, [Refs 4th c.BC+]