pachisi vs Parcheesi

pachisi and Parcheesi both are nouns.

Word	Noun	Adjective	Verb	Adverb
pachisi	Yes	No	No	No
Parcheesi	Yes	No	No	No

As nouns, Parcheesi is a hyponym of pachisi; that is, Parcheesi is a word with a more specific, narrower meaning than pachisi:

pachisi: an ancient board game resembling backgammon; played on a cross-shaped board
Parcheesi: a modern board game based on pachisi

pachisi (noun)	Parcheesi (noun)
an ancient board game resembling backgammon; played on a cross-shaped board	a modern board game based on pachisi