The word "trice" refers to a very short period of time or a quick moment. When you do something in a trice, you do it very quickly or swiftly. It is often used to emphasize how fast something happens.
The word "trice" originates from the late 16th century. It is derived from the Middle English term "trice," which means "to pull" or "to draw," and is related to the Old French "tricer" meaning "to pull."