كَيِّسٌ

(S, A, Mgh, Msb, K) and ↓ كَيْسٌ, (TA,) [like هِيِّنٌ and هَيْنٌ, &c.,] Acute, or sharp, or quick, in intellect; clever; ingenious; skilful; knowing; intelligent: (S, A, Mgh, Msb, K, TA:) feminine كَيِّسَةٌ: (S, A:) and ↓ كِيسَى, applied to a woman, is syn with كَيِّسَةٌ, and is, as also كُوسَى, [each originally كُيْسَى,] feminine of أَكْيَسُ: (S:) [whence it appears that this last word is according to J synonym with كَيِّسٌ; i. e., a simple epithet, like its contr. أَحْمَقُ: but it has another signification, for which see below:] or, according to Kr, كِيسَى and كُوسَى are pls. of كَيِّسَةٌ; and there are no similar instances except ضِيقَى and ضُوقَى, pls. of ضَيِّقَةٌ, and طُوبَى, plural of طَيِّبَةٌ: but ISd holds them to be fems. of the measure أَفْعَلُ: (TA: [see ضُوقَى in article ضيق:]) the plural of كَيِّسٌ is أَكْيَاسٌ (A, Mgh, Msb, TA) and كَيْسَىِ, (A, K, TA [in the CK, erroneously, كِيسى,]) like حَمْقَى, (A,) having this latter form in order that it may resemble its contr., حَمْقَى: (TA:) and كِيَاسٌ is plural of كَيِّسَةٌ, (A, TA,) [and أَكَايِيسُ is apparently plural of كِيَاسٌ: see an example voce طِشَّةٌ.] You also say, ↓ رَجُلٌ كَيِّسٌ مُكَيَّسٌ, meaning, A man acute or sharp or quick in intellect, &c.: (S:) or [acute &c., and] described as being so; or having the attribute of كَيْس ascribed to him: (A:) or ↓ رَجُلٌ مُكَيَّسٌ signifies, as also كَيِّسٌ, a man known as possessing كَيْس [or acuteness &c.]. (TA.) And إِمْرَأَةٌ كَيِّسَةٌ A woman well educated, or well bred. (TA.) And رَجُلٌ كَيِّسُ الفِعْل A man good in action or conduct. (TA.) And بَنَى دَارًا كَيِّسَةً (A) (tropical:) He built an elegant house; synonym ظَرِيفَةً. (TA.) [The diminutive كُوَيِّسٌ, more properly كُيَيِّسٌ or كِيَيِّسٌ, is much used in the present day as signifying (tropical:) Elegant, pretty, or beautiful.]