Meaning

verb expel or eject (saliva or phlegm or sputum) from the mouth

verb eject or send out in large quantities, also metaphorical

verb eject the contents of the stomach through the mouth

originFrom Middle English spewen, from Old English spīwan, from Proto-West Germanic *spīwan, from Proto-Germanic *spīwaną, from Proto-Indo-European *(s)ptyēw- (“to spit, vomit”). Germanic cognates include English spit, West Frisian spije, Dutch spuien, Dutch spuwen, Low German speen, spiien, German speien (“to spew, spit, vomit”), Swedish spy, Danish spy, Faroese spýggja, Gothic 𐍃𐍀𐌴𐌹𐍅𐌰𐌽 (speiwan). Also…

Etymology from Wiktionary, CC BY-SA 3.0