We won't lead you astray over the history of adduce; it is one of a plethora of familiar words that trace to the Latin root ducere, which means "to lead." Perhaps we can induce you to deduce a few other ducere offspring if we offer a few hints about them. One is a synonym of kidnap, one's a title for a British royal, and one's another word for decrease. Give up? They are abduct, duke, and reduce, respectively. There are also many others, including induce, which means "to persuade" or "to bring about."