رَاحٌ
1.
Windy; applied to a day: (TA:) or, so applied, violently-windy; (S, Mgh, Msb, K;) as also
رَايءِحٌ, which is the original form, (Msb,) or may be so: (TA:) feminine of the former with ة, applied to a night (لَيْلَةٌ). (A, TA.) [See also رَيِّحٌ.] One says, هٰذِهِ لَيْلَةٌ رَاحَةٌ لِلْمَكْرُوبِ فِيهَا رَاحَةٌ [This is a windy night: the oppressed in mind has rest therein]. (A.)
2.
It is also synonym with
اِرْتِيَاحٌ. (S, L, K. [See 1, near the beginning of the paragraph.])
3.
And [hence,] Wine; (S, A, * K;) as also
رَيَاحٌ: (S, K:) so called because the drinker thereof becomes brisk, lively, or sprightly; or, according to IHsh, because he becomes affected with briskness, liveliness, or sprightliness, disposing him to generous actions: in the L, [which mentions these two words in article ريح,] the ا in the former word is said to be substituted for ى [and hence the ى in the latter if such be the case]. (TA.)
4.
See also رَاحَةٌ, in four places.