extinguish (v.)youdaoicibaDictYouDict
1540s, from Latin extinguere/exstinguere "quench, put out (what is burning), wipe out, obliterate," from ex- "out" (see ex-) + stinguere "quench," apparently an evolved sense from PIE *steig- "to prick, stick, pierce" (see stick (v.)). But see distinguish (v.). Related: extinguishable (c. 1500); extinguished; extinguishing.
fire-engine (n.)youdaoicibaDictYouDict
1680s, "engine designed to throw a stream of water through a hose onto a fire for the purpose of extinguishing it," from fire (n.) + engine (n.). Also an early name for a steam engine (1722).