Noah Webster
Sneer
SNEER, verb intransitive [from the root of Latin naris, nose; to turn up the nose.]
1. To show contempt by turning up the nose, or by a particular cast or countenance; 'naso suspendere adunco.'
2. To insinuate contempt by covert expression. I could be content to be a little sneered at.
3. To utter with grimace.
4. To show mirth awkwardly.
SNEER, noun
1. A look of contempt, or a turning up of the nose to manifest contempt; a look of disdain, derision or ridicule.
2. An expression of ludicrous scorn.