Emission
/ɪˈmɪʃən/noun
The act of sending out or releasing something, especially light, gas, or radiation.
Did you know?Its root is the same Latin verb behind “mission” and “remit,” because all of them began as the idea of sending something away or letting it pass through.
Etymological Timeline
Proto-Indo-European
PIE
*mei-
“to change, move, or exchange”
Latin
Latin
mittere
“to send, let go, release”
Latin
Latin
emittere
“to send out, let go, discharge”
Late Latin
Latin
emissio
“a sending out, discharge”
Middle English
English
emissioun
“an act of sending out or letting escape”
Modern English
English
emission
“the act of sending out or giving off”