Strong's G1301 · Greek

διατηρέω

diatereo · dee-at-ay-reh'-o

from 1223 and 5083; to watch thoroughly, i.e. (positively and transitively) to observe strictly, or (negatively and reflexively) to avoid wholly

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 2 δια-τηρέω , -ῶ [in LXX for שׁמר , נצר , etc.; seq. ἀπό (for מִן ), as in Ps 11 (12):8 ;] to keep carefully : Lk 2:51 ; seq. ἐκ , Ac 15:29 .† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain