From teros (a "watch"; perhaps akin to 2334 ; to "guard" (from "loss" or "injury", properly by keeping "the eye" upon; and thus differing from 5442 which is properly to "prevent" escaping; and from 2892 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"): - hold fast, keep (-er), (ob-, pre-, re) serve, watch.