ويسوَيْسٌ a word used to. denote compassion, or pity, and admiration of one's beauty; (M, K;) the object being a child; (K;) as when one says of a child, وَيْسَهُ مَا أَمْلَحَهُ [Merry on him! or the like: how beautiful is he!]: (TA:) or وَيْسٌ and وَيْحٌ are used in the place of وَيْلٌ; (TA;) and وَيْسٌ لَهُ signifies وَيْلٌ لَهُ [Woe to him!]: (M, TA:) or, as some say, وَيْسٌ is a word denoting contempt; and has no verb; analogy forbidding that it should have one: (IJ, M:) Aboo-Turáb says, I heard Abu-sSemeyda' say, وَيْسٌ and وَيْحٌ and وَيْلٌ have one meaning: (TA:) or وَيْسَكَ is not said except to children; and وَيْلَكَ is an expression in which is roughness and reproach; and ويح is a gentle and good expression. (AHát, TA.) See ويْحٌ and وَيْلٌ and وَيْبٌ. b2:  It also signifies Poverty. (ISk, M.) And one may say, if it be right to say so to one, وَيْسٌ لَهُ as meaning Poverty be to him. (ISk.) b3:  Also, What a man desires. (M, K.) So in the phrase لَقِىَ وَيْسًا He found, or met with, or experienced, what he desired; (M, K;) accord. to an explanation given by IAar; so that it means much: but in one place he says that this phrase signifies he found, &c., what he did not desire. (M.) ويل &c.
   -------------------------------------------------و (Supplement)
 alphabetical letter و وَ: you say, سَارَ زَيْدٌ وَعْمْرٌو, using و as a conjunction; rather than وَعَمْرًا: and سِرْتُ وَزَيْدًا, using و as [a prep.] denoting concomitance; rather than وَزَيْدٌ. (I'Ak, p. 161.) b2:  مَا أُمِّى وَأُمُّهُ; and مَا أَنَا وَطَلَبُ الوَحْشِ: see أُمٌّ: and see another ex. in a verse cited voce حَلِمَ. In the Kur, ii. 121 some read وَإِسْمٰعِيلُ; and others وإِسْمٰعِيلَ. In مَا لَكَ وَزَيْدًا, the و denotes concomitance; What hast thou in common, or to do, with Zeyd? or it is for مَا لَكَ وَِلزَيٍْد. b3:  وَ in وهُوَ لَكَ: see حَمْدٌ. b4:  الوَاوُ لِمُطْلَقِ الجَمْعِ [The و denoting unrestricted conjunction, not necessarily implying simultaneousness nor relative order]. (I'Ak, p. 254.) وَا generally means Alas! see وَا حَرَبَا, and the last verse voce حَتَّى. b2:  وَا زَيْدَاهَ Alas, Zeyd! b3: وَا دَفْرَاهْ, and وَانِتْنَاهْ, Alas, stench! meaning Alas, what an abominable thing! See دَفْرٌ; and أَبٌ.