potlatch

英 ['pɒtlætʃ] 美['pɑt,lætʃ]

potlatch (n.): 1845, "a gift," from Chinook jargon pot-latch, "a gift," from Nootka (Wakashan) patshatl "giving, gift." Later (1865) in sense "ceremony in which gifts are exchanged."