pourboire vs bakshis

pourboire and bakshis both are nouns.

Word	Noun	Adjective	Verb	Adverb
pourboire	Yes	No	No	No
bakshis	Yes	No	No	No

As nouns, pourboire and bakshis are synonyms defined as:

pourboire and bakshis: a relatively small amount of money given for services rendered (as by a waiter)

Other synonyms of pourboire include backsheesh, baksheesh, bakshish, gratuity, tip.

pourboire (noun)	bakshis (noun)
a relatively small amount of money given for services rendered (as by a waiter)	a relatively small amount of money given for services rendered (as by a waiter)