G5442 φυλάσσω (phylássō)

KJV renderings: beward, keep (self), observe, save
Strong's definition: to watch, i.e. be on guard (literally of figuratively); by implication, to preserve, obey, avoid
Derivation: probably from G5443 (φυλή) through the idea of isolation;

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.