This clue appeared in the NYT Crossword on Monday, January 19, 2026 (13 Down). The answer is hidden below until you want it. Monday puzzles are the easiest of the week, so the clue is likely a plain definition.
Answer length: 4 squares
First letter
P _ _ _
First and last letters
P _ _ S
Show the answer
About the answer
PSIS as a word: (anatomy) Initialism of posterior superior iliac spine.
PSIS has been an answer 3 times in the NYT Crossword and Mini since January 14, 2026.
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