MARROW

I. noun Etymology: Middle English marowe, from Old English mearg; akin to Old High German marag ~, Sanskrit majjan Date: before 12th century 1. bone ~ , the substance of the spinal cord, 2. the choicest of food, the seat of animal vigor, the inmost, best, or essential part ; core , vegetable ~ , ~y adjective II. noun Etymology: Middle English marwe, ~ Date: 1516 one of a pair