Webster's Revised Unabridged Dictionary (1913 + 1828)
result(s) from the 1913
Ni"ce*ty (?), n.; pl. Niceties (#). [OE. niceté foolishness.]
1. The quality or state of being nice (in any of the senses of that word.).
The miller smiled of her nicety.
2. Delicacy or exactness of perception; minuteness of observation or of discrimination; precision.
3. A delicate expression, act, mode of treatment, distinction, or the like; a minute distinction.
The fineness and niceties of words.
To a nicety, with great exactness or accuracy.