Morphological search and replace

A morphological find and replace editing tool for a word processor replaces inflected forms of a user-specified find word in a text document with inflected forms of a user-specified replacement word having matching parts of speech. The tool retrieves sets of word forms having a same root word as the find and replacement words, respectively, from a word forms database. The tool selects a single set of word forms with a common root word for each of the find and replacement words such that the find and replacement words are matching parts of speech. Where word forms in the find word's set are found in the text document, they are replaced with a word form from the replacement word's set with a best matching part of speech.