Meaning

noun made of sheep's or calf's viscera minced with oatmeal and suet and onions and boiled in the animal's stomach

originFrom Late Middle English hagis (“haggis”), from hag, haggen (“to chop, cut, hack; to cut into”) (from Old Norse hǫggva (“to hew”)), or from hakken (“to chop, hack; to dice, mince”) (from Old English hēawan (“to chop, hew; to dice, mince”)), both ultimately from Proto-Indo-European *kewh₂- (“to hew; to beat, strike; to forge”).

Etymology from Wiktionary, CC BY-SA 3.0