From Middle English scuttel, scutel, from Old English scutel ("dish, platter"), from Latin scutella, diminutive form of Latin scutra, perhaps related to Latin scutum; compare Dutch schotel and German Schüssel.
Borrowed from Middle French escoutille (compare French écoutille), from Old Norse skaut, or alternatively from Spanish escotilla, ultimately from Gothic 𐍃𐌺𐌰𐌿𐍄𐍃 ("projecting edge, fringe"), from Proto-Germanic *skautaz. Compare German Schoß, Old English sċēat. More at sheet.