noun (sometimes initial capital letters)
a Japanese lounging jacket with wide, loose sleeves and often an overlapping front closure usually tied with a sash.
Origin of happi coat
1875–80; < Japanese, earlier fappi, variant of fan-pi < Middle Chinese, equivalent to Chinese bàn half + bèi wear
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019