The story
Reversed spelling of Stayman, the surname of Victor Mitchell's bridge partner, Samuel Stayman.
Etymology from Wiktionary, CC BY-SA 4.0.
Namyats
Today it means: A conventional agreement to open hands with a long major suit that are too strong for a direct preemptive opening with a 'two-under' transfer bid. When the long suit is in hearts, opener bids 4♣, and when it is in spades, opener bids 4♦. Full definition →