خيب1 خَابَ, (S, A, Msb, K, &c.,) aor. ـِ (Msb, K) and يَخُوبُ, (TA,) inf. n. خَيْبَةٌ, (S, Msb, K,) He (a man, S) was disappointed of attaining what he desired or sought; was balked; was unsuccessful; failed of attaining his desire: (S, Msb, K:) he was denied, refused, prohibited from attaining, or debarred from, what he desired or sought. (A, K.) You say, مَنْ هَابَ خَابَ [He who fears will be disappointed]. (A, TA.) And خَابَ سَعْيُهُ وَأَمَلُهُ [His labour, and his hope, or expectation, resulted in disappointment; were  disappointed, balked, or frustrated;] he attained not what he sought or desired. (A, TA.) [See also خَيْبَةٌ, below.] b2:  Also He suffered loss. (K.) b3:  And i. q. كَفَرَ [He disbelieved; or be came an unbeliever, or infidel; &c.]. (K.) 2 خيّبهُ, (S, A, Msb, K,) inf. n. تَخْيِيبٌ, (S,) He (God, A, Msb, K, or a man, S) disappointed  him; or caused him to be disappointed of at taining what he desired or sought, to be balked, to be unsuccessful, or to fail of attaining his desire: (S, Msb:) he denied him, refused him, prohibited him from attaining, or debarred him from, that which he desired or sought. (A, K.) خَيْبَةٌ inf. n. of 1 [q. v.]. (S, Msb, K.) It is said in a prov., (S, Msb, K,) الهَيْبَةٌ خَيْبَةٌ [Fear is a cause of disappointment]. (S, A, Msb, K.) And one says, خَيْبَةً لِزَيْدٍ [May God send dis appointment to Zeyd], and خَيْبَةٌ لِزَيْدٍ [Disappointment be to, or befall, Zeyd]: (S, K:) خيبة in the former instance being in the accus. case as governed by a verb understood; and in the latter, in the nom. case as an inchoative: (S:) each  being a form of imprecation. (K.) قَدْحٌ خَيَّابٌ (tropical:)  [An endeavour to produce fire with a زَنْد] that does not produce fire (لَايُورِى). (A, K. * [In some copies of the K, for قَدْح, we find قِدْح. Golius explains خَيَّابٌ as meaning ignitabulum fallens, quod non excudit semina ignis: but I cannot anywhere find قَدْحٌ or قِدْحٌ in the sense which he assigns to one of these words, which is that of مِقْدَحَةٌ &c.]) b2:  In the following verse, quoted by Th, اُسْكُتْ وَلَا تَنْطِقْ فَأَنْتَ خَيَّابْ كُلُّكَ ذُو عَيْبٍ وَأَنْتَ عَيَّابٌ حيّاب may be [an epithet] of the measure فَعَّال from الخَيْبَةُ; [so that the meaning may be (assumed tropical:)  Be  thou silent, and speak not, for thou art habitually unsuccessful; thou art altogether vitious, or faulty, and thou art a great imputer of vices, or faults, to others;] or the person there men tioned may be meant to be likened to the قدح above mentioned. (TA.) b3:  One says also, سَعْيُهُ فِى خَيَّابِ بْنِ هَيَّابٍ (tropical:)  His labour [has ended, or ends, or will end,] in loss. (A, K.) خَائِبٌ part. n. of 1. (Msb, TA.) A2:  خَائِبِكَ and بِخَائِبِكَ: see خَآءَ بِكَ in art. خوأ.قِدْحٌ أَخْيَبُ (assumed tropical:)  An arrow of those employed in the game called المَيْسِر, to which no lot, or portion, pertains: for there are three such arrows; namely, the مَنِيح, the سَفِيح, and the وَغْد: occurring in a trad. of 'Alee. (TA.) وَقَعُوا فِى وَادِى تُخُيِّبَ, (Ks, S, A, K, but in the last وَقَعَ,) and تُخَيِّبَ, (A, K,) the last word being imperfectly decl. [in each of these instances], (Ks, S, A, K,) meaning فِى البَاطِلِ [i. e. They fell into that which was vain, unreal, nought, futile, or the like, and consequently, into disappointment], (Ks, S, K,) or فى بَاطِلٍ [into a state of things that was vain, &c.]. (A.)