English
lunar hay fever
From lunar + hay fever.
A compound of lunar + hay fever
Proto-Indo-European *lewk- ‘bright’
…
Proto-Italic *louksnā ‘moon’
Latin lūna ‘moon’
Latin lūnāris ‘of or pertaining to the moon, lunar’
Middle English lunar ‘shaped like the crescent moon’
English lunar
The story
Coined by Harrison Schmitt in 1972, Apollo 17 astronaut and geologist, to describe the condition already previously encountered by earlier crews, and by his crew.
Today it means
noun A condition caused by irritation to the eyes, nose, throat, and lungs, from exposure to highly abrasive lunar dust.
Language periods are conventional ranges, not dates for this word.
Etymograph / lunar hay fever