Skillet

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Middle English: perhaps from Old French escuelete, diminutive of escuele ‘platter’, from late Latin scutella .

wiktionary

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Old French escuëlette, diminutive of escuëlle(“a porringer”), (French écuelle), from Vulgar Latin scutella, diminutive of scutra, scuta(“tray, dish”). Compare scuttle(“basket”).

etymonline

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skillet (n.)

c. 1400, skellet, "pan used for boiling or frying," a word of uncertain origin, perhaps from Old French esculette "a little dish" (Modern French écuelle), diminutive of escuele "plate," from Latin scutella "serving platter" (see scuttle (n.)); or formed in English from skele "wooden bucket or pail" (early 14c.), from a Scandinavian source such as Old Norse skjola "pail, bucket."