sophrosyne

From Ancient Greek σωφροσύνη (sōphrosúnē, “soundness of mind, prudence, temperance”) from σώφρων (sṓphrōn, “sane, moderate, prudent”) (from σῶς (sôs, “safe, sound, whole”) + φρήν (phrḗn, “mind”)) +‎ -σύνη (-súnē, abstract noun suffix).

sophrosyne (uncountable)

1. The Ancient Greek concept of an ideal of excellence of character and soundness of mind, which when combined in one well-balanced individual leads to other qualities, such as temperance, moderation, prudence, and self-control.

• sophron
• Sophrosyne