Lexical Definition

‎σώφρων‎ sṓphrōn (so'-frone) self-controlled ^G:A
from the base of ‎σώζω‎ and that of ‎φρήν‎

discreet, sober, temperate.

• safe (sound) in mind, i.e. self-controlled (moderate as to opinion or passion)

Abbott-Smith

** σώφρων, -ον [in LXX: IV Mac 9 * ;]
(a) of sound mind, sane, sensible;
(b) self-controlled, sober-minded: I Ti 3:2, Tit 1:8 2:2, 5 (Arist.).†

Abbott-Smith References

Liddell-Scott-Jones

σώφρων,

Epic dialect and poetry σᾰόφρων (as in [Refs 8th c.BC+], ονος, ὁ, ἡ: neuter σῶφρον:—properly of sound mind (from σῶς, φρήν, [Refs 5th c.BC+]: hence, discreet, prudent, οὐκ ἄν με σαόφρονα μυθήσαιο ἔμμεναι [Refs 8th c.BC+]; opposed to ἄφρων, [Refs 6th c.BC+]; opposed to νήπιος, [Refs]; opposed to ἀνόητος, [Refs 5th c.BC+]

__2 of things, τοῖσι λόγοις σῶφρον ἔπεστιν ἄνθος [Refs 5th c.BC+]; σ. οἶκτος reasonable compassion, [Refs 5th c.BC+]; σῶφρόν ἐστι with infinitive, [Refs]
__II in Attic dialect, especially having control over the sensual desires, temperate, self-controlled, chaste (σώφρων ὁ μετρίας ἐπιθυμίας ἔχων [Refs 5th c.BC+]; γυνὴ σ. [NT+5th c.BC+]
__II.2 of things, σ. γνώμη [Refs 4th c.BC+]; σ. ὑμέναιοι, λέχη, [Refs 5th c.BC+]; τράπεζα, δίαιτα, [Refs 5th c.BC+]; ἀριστοκρατία moderate, [Refs 5th c.BC+]; χάρις[Refs 5th c.BC+]
__II.3 τὸ σῶφρον, ={σωφροσύνη}, [Refs 5th c.BC+]; σοῦ τὸ σ. [Refs 5th c.BC+]
__III adverb -όνως[Refs 5th c.BC+]; δικαίως πράττοντες καὶ σ. [Refs]; σ. ἐφέπεσθαι cautiously, [Refs 5th c.BC+] adopt a more moderate constitution, [Refs 5th c.BC+] but -εστέρως [Refs 5th c.BC+]: superlative -έστατα[Refs 5th c.BC+]

_{LSJ Scripture Refs: 1Tim.3.2}