Historically, the word "decimate" means to "reduce/ destroy by one tenth"... i.e., a decimated army of 100 soldiers would have lost 10 soldiers.
Is there a word that means the inverse, IOW "reduce/ destroy to one tenth", where a XXXXX army of 100 would only have 10 soldiers left?
Ummm... dunno why this was marked as a duplicate to a question I didn't ask, but... still looking for an answer...