outgas
UK[ˌaʊtˈɡæs]US[ˈaʊtˌɡæs]
v
to release gas that was trapped, absorbed, or dissolved in a material.
v
to lose gas from its atmosphere into space.
Morpheme Breakdown
out
gas
out
outward
gas
gaseous substance
Etymology
the word "outgas" is a modern english compound verb formed in the 20th century, combining the native english directional prefix "out-" with the noun "gas". the prefix "out-" derives from proto-germanic "ūt", carrying the sense of moving from inside to outside. the root "gas" entered english from the dutch scientific term, which itself was a deliberate creation from the greek concept "khaos". the literal construction "to gas out" logically evolved to describe the scientific process where a substance releases trapped or absorbed gases into the surrounding environment, a meaning particularly relevant in materials science and planetary physics.
Analysis
Structure: out (outward) + gas (gaseous substance)
"out" is from old english "ūt", meaning "out, away, outside", functioning as a directional prefix. "gas" is a loanword from dutch, coined in the 17th century based on greek "khaos" (chaos, void), functioning as the core noun root.
Examples
the new furniture may outgas volatile organic compounds for several months.
scientists study how planets can outgas their atmospheres over billions of years.
the vacuum chamber is used to outgas the electronic components before sealing.