exhaustion

noun

Etymology: Etymology tree Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ex- Proto-Indo-European *h₂ews- Proto-Indo-European *h₂ews-ye-tider. Proto-Italic *auzjō Latin hauriō Latin exhauriō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Medieval Latin exhaustiōbor. English exhaustion Borrowed from Medieval Latin exhaustiō, from exhauriō. Surface analysis: exhaust + -ion.

1. The point of complete depletion, of the state of being used up.

   “We worked the mine to exhaustion, there's nothing left to extract.”

2. Supreme tiredness; having exhausted energy.

   “I ran in the marathon to exhaustion, then I collapsed and had to be carried away.”

   “As soon as Julia returned with a constable, Timothy, who was on the point of exhaustion, prepared to give over to him gratefully. The newcomer turned out to be a powerful youngster, fully trained and eager to help, and he stripped off his tunic at once.”

3. The removal (by percolation etc) of an active medicinal constituent from plant material.
4. The removal of all air from a vessel (the creation of a vacuum).
5. An exhaustive procedure