Meaning

noun an excavation that is (usually) filled with water

noun a small lake

noun an organization of people or resources that can be shared

originFrom Middle English pool, pole, pol, from Old English pōl (“pool”), from Proto-West Germanic pōl, from Proto-Germanic *pōlaz (“pool, pond”), from Proto-Indo-European *bōlos (“bog, marsh”). Cognate with Scots puil (“pool”), Saterland Frisian Pol (“pool”), West Frisian poel (“pool”), Dutch poel (“pool”), German Low German Pohl, Pool, Pul (“pool”), German Pfuhl (“quagmire, mudhole”), Danish pøl…

Etymology from Wiktionary, CC BY-SA 3.0