Bible Greek and Hebrew Dictionaries combined for Word Studies
Genesis Chapter 1
gainsay 0471 # antepo {an-tep'-o}; from 473 and 2036; to refute or deny: -- {gainsay}, say against.
gainsay 0483 # antilego {an-til'-eg-o}; from 473 and 3004; to dispute, refuse: -- answer again, contradict, deny, {gainsay}(-er), speak against.