I gave them a hypo-they're both under now.
"The Instant of Now"
Irving E. Cox, Jr.
So I wandered through the old house for the last time, sniffing the agreeable odor of aged hypo still permeating the dark room, re-covering the empty stains of skins and traces of maps on the walls, and re-filling in my mind the vacant shelves.
"Edge of the Jungle"
William Beebe
hypo means less of the negative element than ous; per means more of the negative element than ic.
"An Introduction to Chemical Science"
R.P. Williams