exhaust
UK: ɪɡˈzɔːst | US: ɪɡˈzɔːst
vt. to drain of strength or resources completely
vt. to use up or consume entirely
n. waste gases or air expelled from an engine or machine
n. the system that expels such gases (e.g., car exhaust)
exhaust = ex<out> + haust<draw>
- ex<out>: Latin prefix meaning "out" or "thoroughly."
- haust<draw>: From Latin haustus (past participle of haurire), meaning "to draw" (e.g., water, air, or resources).
Etymology Origin:
The word exhaust originates from Latin exhaurire ("to draw out completely"), combining ex- (intensifying "out") and haurire ("to draw"). It initially described draining liquids (e.g., wells) and later expanded to abstract uses like depleting energy or resources. The noun form (waste gases) emerged in the 19th century with industrialization, reflecting the "expulsion" of byproducts.
The long hike exhausted me.
The project exhausted all available funds.
Car exhaust contributes to air pollution.
The factory’s exhaust system needs maintenance.
She felt emotionally exhausted after the debate.