I've been researching the 1920s lately, and the first newspaper reference to "hi-jacking" I've seen is from around 1923. The original hyphen shows that it's a compound word. I assume it's from "highway jackrolling," meaning a theft by a show of force.
Available to all players in Black Ops Cold War for free, Hijacked is chaotic, frenetic fun that'll test your every reflex on the high seas. Let's hope you're feeling spry Hijacked is small, narrow, and perfectly designed for constant battle.
If you play blackjack, you've probably heard that fewer decks are better for the player. And if all other rules are equal, that's true. The house edge is lowest on single-deck games, and increases with each deck added.
To make it harder to keep track of the cards in the deck, casinos soon switched to a multideck game, with two decks shuffled together. Today, most casinos use six, eight, or even more decks shuffled together. This is why few dealers deal by hand.