Extended Strong's Greek Lexicon (Abbott-Smith based)
self-discipline
Usage: σωφρονισμός, -οῦ, ὁ (σωφρονίζω), __(a) an admonishing (F1J, Plut., al.); __(b) self-control, self-discipline: 2Ti.1:7 (on the reflexive meaning here, see Ellic., in l).† (AS)