Old English spiwan "spew, spit," from Proto-Germanic *spiew- (cognates: Old Saxon spiwan, Old Norse spyja, Old Frisian spiwa, Middle Dutch spijen, Dutch spuwen, Old High German spiwan, German speien, Gothic spiewan "to spit"), from PIE *sp(y)eu- "to spew, spit," probably ultimately of imitative origin (cognates: Latin spuere; Greek ptuein, Doric psyttein; Old Church Slavonic pljuja, Russian plevati; Lithuanian spiauti). Also in Old English as a weak verb, speowan. Related: Spewed; spewing.

"vomited matter," c.1600, from spew, v..