Result of search for "covenant":
802. asunthetos as-oon'-thet-os from 1 (as a negative particle) and a derivative of 4934; properly, not agreed, i.e. treacherous to compacts:-- covenant-breaker.
1242. diatheke dee-ath-ay'-kay from 1303; properly, a disposition, i.e. (specially) a contract (especially a devisory will):--covenant, testament.
2476. histemi his'-tay-mee a prolonged form of a primary stao stah'-o (of the same meaning, and used for it in certain tenses); to stand (transitively or intransitively), used in various applications (literally or figuratively):--abide, appoint, bring, continue, covenant, establish, hold up, lay, present, set (up), stanch, stand (by, forth, still, up). Compare 5087.
3670. homologeo hom-ol-og-eh'-o from a compound of the base of 3674 and 3056; to assent, i.e. covenant, acknowledge:--con- (pro-)fess, confession is made, give thanks, promise.
4934. suntithemai soon-tith'-em-ahee middle voice from 4862 and 5087; to place jointly, i.e. (figuratively) to consent (bargain, stipulate), concur:--agree, assent, covenant.