DCHP-1 Online
marrow fat Hist. or Obs. 
a choice butterlike substance rendered from the bones of buffalo and other large animals and used by the Indians and traders as butter and as an ingredient of pemmican.
- 1717 (1932) These Indians gave me a Side of Moose flesh, Dry'd, & Another of Deers flesh, & 2 pretty bigg bladders of Marrow fatt. . . .
- 1862 (1931) Send to Fort for potatoes, milk & marrow fat.
- 1931 . . . the train wound its slow way back to Pembina laden with . . . 556 bladders of marrow grease.
- 1947 Clean Marrow fat rendered down like white butter.
- 1717 (1932) These Indians gave me a Side of Moose flesh, Dry'd, & Another of Deers flesh, & 2 pretty bigg bladders of Marrow fatt. . . .