1911 Encyclopædia Britannica/Haggis

HAGGIS, a dish consisting of a calf’s, sheep’s or other animal’s heart, liver and lungs, and also sometimes of the smaller intestines, boiled in the stomach of the animal with seasoning of pepper, salt, onions, &c., chopped fine with suet and oatmeal. It is considered peculiarly a Scottish dish, but was common in England till the 18th century. The derivation of the word is obscure. The Fr. hachis, English “hash,” is of later appearance than “haggis.” It may be connected with a verb “to hag,” meaning to cut in small pieces, and would then be cognate ultimately with “hash.”