I am looking for a digitized dictionary that allows me to search for word groups.

(ideally with latin origins! * I know not a chance of the latin! LOL)

Ok so what I need to do is have references to word styles, especially modifiers and in that I mean I need to punch in a search for all adjective or adverb modifications of a word, then noun variations and the like, or simply list all words in their adverb form etc. For instance search for all articles etc.

Such as list all adverbs and their usage. All adjectives and their usage etc......

I am searching for ideally an exhaustive digital word reference that I can download or purchase to achieve this for my research and would sincerely appreciate any advice and direction to the best known sources if they exist.

Many thanks!