Webster's Revised Unabridged Dictionary · 1913

Pachisi

Pachisi , noun

[Hind., from pachis twenty-five, the highest throw in the game.]

1.
A game, somewhat resembling backgammon, originating in India.
2.
A game adopted from the Indian game, using disks, as of pasteboard, and dice; it is played on a cross-shaped board. [United States & English]

Also: Parchisi, Parchesi