Meaning

noun the larva of the housefly and blowfly commonly found in decaying organic matter

originFrom Middle English magot, magat, maked, probably a metathetic alteration of maddock, maðek (“worm", "maggot”), originally a diminutive form of a base represented by Old English maþa (Scots mathe), from Proto-West Germanic *maþō, from Proto-Germanic *maþô, from the Proto-Indo-European root *mat, which was used in insect names, equivalent to made + -ock. Near-cognates include Dutch made, German…

Etymology from Wiktionary, CC BY-SA 3.0