The Latin word negāre, meaning “to deny” or “to say no,” and its form negātus give us the root neg. Words from the Latin negāre have something to do with saying no. Anything negative, such as a reply to a question, denies something or responds by saying no. To renege is to go back on, or deny, an agreement or promise. Even the last letters of deny, to declare something to be false, come from negāre.