خَآصَّة

xaAS~apN xAS xASh xASp : see xaAS~N , in four places. ― -b2- It also signifies A property of a thing, not found, or not existing, either wholly or partly, in another thing: and ↓ xaAS~iy~apN [thus correctly written, and thus I have always found it written except by Golius and those who have probably imitated him, who write it without the sheddeh to the Y ,] is used as denoting [ a property, or particular or peculiar virtue, which is ] an unknown cause of a known effect; as that by which a medicine operates: the former differs from the latter in being conventionally applied to an effect, [or effective property, ] whether the cause of its existence be known or not: [the pl. of the former is xawaAS~u , agreeably with analogy and usage, like as EawaAm~u is pl. of EaAm~apN :] the pl. of the latter is xaAS~iy~aAtN [and xaSaAy^iSu ]; and xawaAS~u is a quasi-pl. n., not a pl., of the same. (Kull p. 174. [All the abovementioned words here cited from that work are there without syll. signs, as being well known. Both xAS~p and ↓ xAS~y~p , as here explained, are perhaps post-classical; but of this I am not certain: and both are sometimes used as meaning The peculiar nature of a thing; also termed its essence. ]) ― -b3- xaAS~apF and bixaAS~apK : see xuSuwSN .