To add to the many find and replace issues that have shown up, at one point TSR's style guide for D&D material said that "wizard" had to be used to the exclusio

To add to the many find and replace issues that have shown up, at one point TSR's style guide for D&D material said that "wizard" had to be used to the exclusion of "mage". So when proofs of a book arrived where the authors had used "mage" they did a find and replace job. Resulting in such lines as "The tower can take up to 200 points of dawizard before it is destroyed. Dawizard sustained is cumulative." and references to a spell called "Silent Iwizard".