The word "stump" can be used as a noun or a verb. As a noun, it refers to the lower part of a tree trunk that remains after the top has been cut off. As a verb, it means to cause someone to be unable to find an answer or solution, or to confuse or puzzle someone. In the context of the clue "Flummox," it suggests that "stump" relates to the act of confusing or puzzling someone.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Flummox. Explanations are generated by AI and may be inaccurate.