Meaning

noun a plug used to close a hole in a barrel or flask

verb give a tip or gratuity to in return for a service, beyond the compensation agreed on

verb close with a cork or stopper

originFrom bouget (“wallet, purse or bag”), from Middle English bogett, bouget, bowgette (“leather pouch”), from Old French bougette, diminutive of bouge (“leather bag, wallet”), from Late Latin bulga (“wallet, purse”), from Gaulish bolgā, from Proto-Celtic *bolgos (“sack, bag, stomach”), from Proto-Indo-European *bʰólǵʰ-os (“skin bag, bolster”), from *bʰelǵʰ- (“to swell”).

Etymology from Wiktionary, CC BY-SA 3.0