oleomargarine
n.
1873, "butter substitute made from beef fat," from French oléomargarine (1854), from oléine (from Latin oleum "oil" + -ine, after glycerine) + margarine. It was regarded as a chemical compound of olein and margarine.
〔李〕n.人造黄油，代黄油（margarine n.黄油） ←ole（o）-[L] =oil油