Dictionary entry

συντηρέω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament with Strong's

συν-τηρέω, -ῶ

[in LXX: Ez 18:19 (שׁמר), Da TH 7:28 A (נְטַר), Si 13:12 and freq., To 1:11, II Mac 12:42, al.;]

"perfective" of τηρέω (v. M, Pr., 113, 116),

1. to preserve, keep safe, keep close: c. acc. pers., Mk 6:20; c. acc. rei, Mt 9:17; ἐν τ. καρδίᾳ, Lk 2:19 (Arist. and later writers; cf. MM, xxiv).†