za-zen

za-zen \ZAH-ZEN\, noun:

meditation in a prescribed, cross-legged posture.

They told me that before he left he had paced the floor nervously for several days; that he had been doing za zen on his mat for about nine hours a day; that he'd gotten into a quarrel over religion with a Jehovah's Witness on his shift as a night watchman.
-- Shulamith Firestone, Airless Spaces, 1998

I stared at the glow of the cigarette as if in za-Zen, open-eyed meditation.
-- Michael Gurian, An American Mystic, 2000

Za-zen comes from the Japanese word za meaning "seat, seated" and zen, which originally comes from the Sanskrit word meaning "thought, meditation."