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exhaust (v.)

1530s, "to draw off or out, to use up completely," from Latin exhaustus, past participle of exhaurire "draw off, take away, use up, empty," from ex "off" (see ex-) + haurire "to draw up" (as water), from PIE *heusio- "to scoop." Meaning "make weak or helpless, as by fatigue" is from 1630s. Related: Exhausted; exhausting; exhaustible.

exhaust (n.)

"waste gas," 1848, originally from steam engines, from exhaust (v.). In reference to internal combustion engines by 1896. Exhaust pipe, which carries away waste gas or steam from an engine, is by 1849.

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Definitions of exhaust from WordNet
1
exhaust (v.)
wear out completely;
This kind of work exhausts me
Synonyms: wash up / beat / tucker / tucker out
exhaust (v.)
use up (resources or materials);
We exhausted our savings
Synonyms: consume / eat up / use up / eat / deplete / run through / wipe out
exhaust (v.)
deplete;
exhaust one's savings
Synonyms: run down / play out / sap / tire
exhaust (v.)
use up the whole supply of;
We have exhausted the food supplies
exhaust (v.)
eliminate (a substance);
combustion products are exhausted in the engine
Synonyms: discharge / expel / eject / release
2
exhaust (n.)
gases ejected from an engine as waste products;
Synonyms: exhaust fumes / fumes
exhaust (n.)
system consisting of the parts of an engine through which burned gases or steam are discharged;
Synonyms: exhaust system
From wordnet.princeton.edu