ثبج1 ثَبَجَ, (S, K,) aor. ـِ (K,) inf. n. ثُبُوجٌ, (S,) He sat with his but tocks against his heels, resting upon the extremities of his feet, (S, K,) as one does in performing the act termed اِسْتِنْجَآءٌ. (TA.) A2:  [ثَبِجَ: see the next paragraph.]2 ثبّج بِالعَصَا, (S,) inf. n. تَثْبِيجٌ; (S, K;) and بِهَا ↓ تثبّج; (A, K;) He (a pastor, S, A) put the staff, or stick, upon, or against, his back, and put his arms, or hands, behind it: (S, A, K:) thus  he does when he is fatigued. (TA.) A2:  ثبّجهُ, (S, A, TA,) inf. n. as above, (S, K,) He made it obscure; (K;) he did not make it distinct, or plain; (S, A, K;) namely, writing, (S,) [i. e.] handwriting; (A, K;) and speech, or language: (S:) he did not express it in the proper mode, or manner, namely, speech, or language. (A.) and ثُبِّجَ, inf. n. as above; [and app. ↓ ثَبِجَ, aor. ـَ inf. n. ثَبَجٌ, q. v. infrà;] said of writing; [and of speech, or language;] It was, or was made, confused [&c.]. (Lth, TA.) 5 تَثَبَّجَ see 2.ثَبَجٌ The part between the كَاهِل [app. here  signifying the base of the neck] and the back: (S, A, Msb, K:) or the circuit of the upper part of the كاهل, extending to the breast; as is shown by the phrase أَثْبَاجُ القَطَا: [see what follows:] (Aboo-Málik, TA:) or the part between the shoulderblades and the كاهل: and the main part of the back, and the part in which are the places of curvature of the ribs: or the part between the buttocks and the base of the neck: accord. to AO, the part from the rump-bone, or root of the tail, to the hair of the withers [of a horse]: (TA:) also the breast of the bird called القَطَا: (K:) or the middle part of that bird: pl. أَثْبَاجٌ. (A, TA.) b2:  (assumed tropical:)  The middle (S, K) of a thing, (K,) of anything: (S:) and the main part thereof; (K;) so of a heap, or tract, of sand: (A'Obeyd, S:) and the higher, or highest, part of a thing: pl. [of pauc.] أَثْبَاجٌ and [of mult.] ثُبُوجٌ. (TA.) (tropical:)  The middle of the sea: the main part thereof; and of the night: (A, * TA:) the height of the middle of the sea, where the waves meet one another: the higher, or highest, parts of the waves. (TA.) مِنْ ثَبَجِ المُسْلِمِينَ (assumed tropical:)  Of the middle class of the Muslims: or of the higher, or highest, or chief, class of them. (TA from a trad.) A2:  The quality denoted by the epithet أَثْبَجُ, q. v.; as also ↓ ثَبَجَةٌ. (L.) b2:  Incongruity and confusion of speech, or language: and obscurity, or indistinctness, of handwriting. (K. [App. an inf. n.: see 2, last sentence.]) ثَبَجَةٌ A thing of the middling sort, between good and bad: (K, TA:) the fem. ة is affixed because the word is changed from a subst. to an epithet: it occurs in this sense applied to the contribution termed صَدَقَة. (TA.) A2:  See also ثَبَجٌ.) أَثْبَجُ Broad, or wide, in the part called the ثَبَج; (S, K, Msb, TA;) and large in the جَوْف [i. e. chest, or belly]: (TA:) or protuberant, or prominent, in the ثَبَج: (S, A, Mgh, Msb, K:) or humpbacked: (TA in this art., and in art. عجر on the authority of Fr:) and having a projecting, or prominent, breast, or chest: (L:) dim. ↓ أُثَيْبِجُ, occurring in a trad. (S, Mgh, Msb, * K.) أُثَيْبِجُ: see what next precedes.