Meaning

noun a sudden rapid flow (as of water)

noun an unrestrained expression of emotion

verb gush forth in a sudden stream or jet

originFrom Middle English guschen, gusshen, gosshien, perhaps from Middle Dutch guysen (“to flow out with a gurgling sound, gush”) or Old Norse gusa (“to gush”), ultimately imitative. Compare Old Norse geysa (“to gush”), German gießen (“to pour”), Old English ġēotan ("to pour"; > English yote). Related to gust.

Etymology from Wiktionary, CC BY-SA 3.0