Yahtzee rules and scoring categories are somewhat different from Yatzy: The bonus for reaching 63 or more points in the Upper Section is 35 points. Yahtzee does not have the “One Pair” and “Two Pair” categories.
Where did the phrase Yahtzee come from?
Etymology. Trademarked by the Milton Bradley Company in 1956, as an alteration of “Yatzie”, derived from yacht (see Yacht (dice game)).
What’s the meaning of Yahtzee?
He says the word Yahtzee comes from the word yacht. A Canadian couple used to play the game on their yacht. When they sold the game the company who bought the game combined the word yacht and zee, except they dropped the “c” and the game went from being played on the sea to the land.