mummy-brown vs snuff

mummy-brown is not a noun while snuff is a noun.

Word	Noun	Adjective	Verb	Adverb
mummy-brown	No	Yes	No	No
snuff	Yes	Yes	Yes	No

As adjectives, mummy-brown and snuff are synonyms defined as:

Other synonyms of mummy-brown include chukker-brown, snuff-brown.

mummy-brown (noun)	snuff (noun)
	sensing an odor by inhaling through the nose
	finely powdered tobacco for sniffing up the nose
	a pinch of smokeless tobacco inhaled at a single time
	the charred portion of a candlewick

mummy-brown (adjective)	snuff (adjective)
snuff colored; of a greyish to yellowish brown	snuff colored; of a greyish to yellowish brown

mummy-brown (verb)	snuff (verb)
	inhale (something) through the nose
	sniff or smell inquiringly