The origin of the word MERL — sometimes spelled “merle” — according to etymonline.com, is from the Latin word “merulus,” which was adapted into Old French in the 12th century and to “merule” in Old English in the 14th century. MERL was not commonly used after that, but seems to have found a home with Scottish poets in the 15th century.

MERL has appeared in the New York Times Crossword a total of 98 times, although not always clued to the blackbird. MERL Saunders, the jazz keyboardist who also played with the Grateful Dead, has been in the puzzle seven times.



And although he has never been a clue in the New York Times Crossword, this “What the Heck Is That?” is dedicated to the crossword constructor MERL Reagle, who inspired so many fellow puzzle makers.

