GREASE

I. noun Etymology: Middle English grese, from Anglo-French gresse, greisse, creisse, from Vulgar Latin *crassia, from Latin crassus fat Date: 13th century 1. rendered animal fat, oily matter, a thick lubricant, wool as it comes from the sheep retaining the natural oils or fats, ~less adjective ~proof adjective II. transitive verb (~d; greasing) Date: 14th century to smear or daub with ~, to lubricate with ~, to soil with ~, to hasten the process or progress of