Greek word
tēréō
τηρέω
What it means
perhaps akin to theōréō)
perhaps akin to theōréō (θεωρέω)); to guard (from loss or injury, properly, by keeping the eye upon; and thus differing from phylássō (φυλάσσω), which is properly to prevent escaping; and from koustōdía (κουστωδία), which implies a fortress or full military lines of apparatus), i.e. 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); by extension, to withhold (for personal ends; figuratively, to keep unmarried)
Where it comes from
from (a watch