perhaps akin to G2334); to guard (from loss or injury properly by keeping the eye upon; and thus differing from G5442 which is properly to prevent escaping; and from G2892 which implies a fortress or full military lines of apparatus) that is to note (a prophecy; figuratively to fulfil a command); by implication to detain (in custody; figuratively to maintain); by extension to withhold (for personal ends; figuratively to keep unmarried)

1. to attend to carefully, take care of

a. to guard

b. metaph. to keep, one in the state in which he is

c. to observe

d. to reserve: to undergo something