Origin of ambergrisMiddle English ambregris ; from Old French ambre gris ; from ambre (see amber) + gris ; from Frankish an unverified form gr?s, akin to MHG, OS, Dutch gris, gray
Origin of ambergrisMiddle English, from Old French ambre gris : ambre, amber; see amber + gris, gray; see grisaille.
Old French ambre gris (“grey amber”). Though the term was initially spaced as two words, single-word forms predominated by the 19th century. In the 17th century, folk etymologies interpreting the term as amber grease or amber [of] Greece enjoyed some popularity.