φυλάσσω
[in LXX chiefly and very freq. for שָׁמַר, also for נָצַר, etc.;]
to guard, watch;
(a) to guard or watch: c. cogn. acc., φυλακάς, Lk 2:8; c. acc. pers., Ac 12:428:16; pass., Lk 8:29, Ac 23:35; c. acc. rei, Ac 22:20;
(b) to guardor protect: c. acc., Lk 11:21, Jo 12:2517:12, II Th 3:3, I Ti 6:20, II Ti 1:12, 14, II Pe 2:5; ἑαυτὸν ἀπό, I Jo 5:21 (Westc., in l.); metaph. of law, precept, etc., to keep, preserve, observe: Mt 19:20, Lk 11:2818:21, Jo 12:47, Ac 7:5316:421:24, Ro 2:26, Ga 6:13, I Ti 5:21. Mid., to be on one's guard (against), keep oneself from, beware of: c. acc., Ac 21:25, II Ti 4:15; seq. ἀπό., Lk 12:15; ἵνα μή, II Pe 3:17; as in LXX (Ex 12:17, Le 18:4, al.), of laws, etc., to keep, observe: ταῦτα πάντα, Mk 10:20 (cf. δια-φυάσσω).†
SYN.: τηρέω, q.v