Word origin
[1650–60;
hypo- + Gk
pýon pus, discharge from a sore
]This word is first recorded in the period 1650–60. Other words that entered Englishat around the same time include: agency, backhand, gas, profile, syllabushypo- is a prefix appearing in loanwords from Greek, where it meant “under” (hypostasis). On this model, hypo- isused, especially as opposed to hyper-, in the formation of compound words (hypothyroid). Other words that use the affix hypo- include: hypocaust, hypocrisy, hypogynous, hypostatic, hypotonic