[hy.po] n, pl hypos (1711): hypochondria
[2]hypo n, pl hypos [short for hyposulfite thiosulfate] (1855): sodium thiosulfate [3]hypo n, pl hypos (1925) 1: hypodermic syringe
2: hypodermic injection
3: stimulus [4]hypo vt (1942): stimulate "do everything possible to ~ the economy --Clem Morgello"