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Eponymous physicist Mach WSJ Crossword Clue

Down clue · from the September 7, 2026 puzzle

Stuck on “Eponymous physicist Mach” from the Wall Street Journal Crossword? Here is the verified answer:

Answer
ERNST
5 letters · Down · last seen September 7, 2026

More clues from the September 7, 2026 puzzle

1ANeutral and reverse, e.g.5 1DIt keeps people grounded7 2DSwimmer’s woe7 3DDancer’s toppers?7 4DCheer from the bleachers3 5DPaltry pencil4 6D“P-Valley” network5 6A“Get out!”4 7DAntagonistic7 8D“I know the answer!”3 9DLunch hour, for some3 10ARascally kids4