from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of, relating to, or marked by hypercorrection.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. incorrect because of a mistaken idea of standard usage
- v. To change (a word or phrase) to an incorrect form in the mistaken belief that it is standard usage.
hyper- + correct (Wiktionary)