Meaning

verb cause to run

verb move in large numbers

verb pour out

originFrom Middle English pouren (“to pour”), of uncertain origin. Perhaps from Old Northern French purer (“to sift (grain), pour out (water)”), from Latin pūrō (“to purify”), from pūrus (“pure”). Compare Middle Dutch afpuren (“to pour off, drain”). To pour displaced several Middle English verbs: * schenchen, schenken (“to pour”), from Old English sċenċan (“to pour out”) and Old Norse skenkja, from…

Etymology from Wiktionary, CC BY-SA 3.0