1590s, "soiled with smut" (of grain); 1660s, "indecent," from smut + -y (2). Related: Smuttily; smuttiness. Smutty-nosed in ornithology means "having black nostrils."
smutty jokes
smuggle
smuggler
smush
smut
smutch
smutty
*sna-
snack
snaffle
snafu
snag
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