decrunch

Verb

decrunch (third-person singular simple present decrunches, present participle decrunching, simple past and past participle decrunched)

1. (ambitransitive) To decompress (data) previously compressed by crunching.
   • Several phone calls and a borrowed Mac later, I found that the single disk sent me wouldn't in any case decrunch (uncompress its data) without a sister disk — which had gone astray across the Atlantic. Such hitches are always irritating […]1993, The New York Times Book Review, volume 98, page 2
   • The executable is still decrunched in memory, so it will _use_ some extra memory but _save_ disk space.1996, Marcus Alanen, “Re: Exe Crunchers”, in comp.sys.amiga.programmer (Usenet)