LATIN DICTIONARYLexicon Latīnum
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“exhaust” in Latin

The English word exhaust itself goes back to Latin hauriō, through exhaustus.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

exhaust
To use quite up, exhaurire (PROP. and figuratively; e.g., strength, money, allies, affection, etc.): conficere (figuratively, to weaken one’s strength): cf., exanclare is not found in good prose. My patience is exhausted, rumpo or abrumpo patientiam (☞ not rumpitur patientia; Vid: Suet., Tib., 25; Tac., Ann., 12, 50, 3): to exhaust a subject in a speech, etc., omnia accurate exponere; nihil intactum relinquere; rem ab omni parte considerare: the whole question is completely exhausted, abunde satisfactum est huic toti quaestioni.
To weary (Vid :). To be exhausted, wearied, exanimari (Caes.) et lassitudine confici.
To weaken, etc., infirmare (PROP. and figuratively): enervare (to enervate, only PROP.): debilitare, attenuare, minuere, comminuere, imminuere (figuratively, to weaken, lessen): frangere (figuratively, to break, to weaken, enfeeble very much): vires alicujus consumere (Caes.). To exhaust the spirits, animum debilitare or comminuere: to exhaust the enemy, hostes frangere, hostium res accidere: a country is exhausted, alicujus terrae opes attritae sunt; through very great wars, through the expenses of princes, terra exhausta est maximis bellis, sumptu, etc.: land is exhausted, solum (ubertate nimia) effetum et defatigatum est (Col.).

Quick answer

What is the Latin word for exhaust?
The usual Latin words for “exhaust” are exhauriō, cōnficiō, īnfirmō; also ēnervō, dēbilitō, attenuō. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.