τήρησις, -εως, ἡ
(τηρέω), [in LXX: Wis.6:18, (Sir.32:23), 1Ma.5:18, 2Ma.3:40, 3Ma.5:44 * ;]
__1. a watching, hence, imprisonment, ward (see Deiss., BS, 267): Act.4:3 5:18.
__2. a keeping: τ. ἐντολῶν (cf. Sir, Wis, ll. with, and see Westc. on 1Jn.2:3.), 1Co.7:19.†
(AS)