عثم1 عَثَمَ, said of a broken bone, (S, K,) or it is peculiarly said of the arm, (K, [i. e. one says عَثَمَتِ اليَدُ,]) aor. ـِ (PS,) inf. n. عَثْمٌ, (TA,) It  became set unevenly, (S, K, TA,) i. e. [forming a node, or protuberance, like a swelling, not so hard as bone, (see عثْمٌ, below,) or] so as to have an unevenness remaining in it: (TA:) or, said of a broken bone, it approached to a state of consolidation, but was not as yet consolidated; and in like manner, a wound: (ISh, TA:) or it was, or became, in a bad state, and wanting in its former strength, or in its form. (TA.) and عَثِمَ, aor. ـَ inf. n. عَثَمٌ, said of a [broken] bone, signifies [the same, or] It was badly set, so that there remained in it an unevenness. (TA.) And sometimes it is used metaphorically in relation to the sword: so says IJ. (TA. [In a verse there cited as an ex., the verb app. relates to a sword in its scabbard or its case cut in pieces by another sword.]) b2:  عَثَمَ said of a wound means as expl. above: (ISh, TA:) or It became callous, and covered with a skin, but not as yet healed. (K.) A2:  عَثَمْتُهُ I set it unevenly, [so as to form a node, or protuberance, like a swelling, not so hard as bone, (see the first sentence above,)] namely, a broken bone; (S, K;) the verb being trans. as well as intrans., (S, TA,) like رَجَعَ and وَقَفَ. (TA.) b2:  And عَثَمَتِ المَزَادَةَ, (S, K,) inf. n. عَثْمٌ, (TA,) She sewed the مزادة [or leathern water-bag] not strongly, or not firmly; (S, K;) as also ↓ اِعْتَثَمَتْهَا; (S, TA;) in the K, erroneously, ↓ أَعْثَمَتْهَا. (TA.) 2 عثّمهُ, inf. n. تَعْثِيمٌ, He set it; namely, a [broken] bone. (TA.) 4 أَعْثَمَ see 1, last sentence.8 إِعْتَثَمَ see 1, last sentence. b2:  [Hence,] it is said in a prov., إِلَّا أَكُنْ صَنَعًا فَإِنِّى أَعْتَثِمُ, meaning (assumed tropical:)  If I be not skilful, verily I do according to the degree of my knowledge. (S, Meyd.) A2:  اعتثم بِهِ He sought help by means of it; (S, K;) and profited by it, or made use of it. (K.) One  says, خُذْ هٰذَا فَاعْتَثِمْ بِهِ Take thou this, and seek help by means of it [or profit by it]. (S.) b2:  and اعتثم بِيَدِهِ He extended, or stretched forth, his arm, or hand; syn. أَهْوَى بِهَا. (K.) عَثْمٌ inf. n. of 1 [q. v.]. (TA.) b2:  جُبِرَتْ يَدُهُ عَلَى عَثْمٍ means عَلَى عُقْدَةٍ, (S and O in art. عقد,) [i. e. His arm was set and joined unevenly,] so as to form a node, or protuberance, like a swelling, not so hard as bone. (ISk, L in art. اجر.) عَثِمٌ, applied to a [broken] bone, Badly set, so as to have an unevenness remaining in it. (TA.) [And ↓ عَثْمَآءُ signifies the same, applied to an arm (يَدٌ); expl. by Golius as applied to a hand, and meaning Distortedly consolidated, on the authority of Meyd.]عَثْمَآءُ: see the next preceding paragraph.عُثْمَانٌ The young one of the [species of bustard called] حُبَارَى. (S, K.) b2:  And The young one of the [serpent called] ثُعْبَان. (AA, K.) And, (K,) some say, (TA,) The serpent, (AA, K,) of whatever species it be: (AA:) or the young one thereof. (AA, Mgh, K.) And أَبُو عُثْمَانَ is a surname of The serpent; (K, TA;) mentioned  by 'Alee Ibn-Hamzeh. (TA.) عَيْثَمٌ, applied to a camel, Big, or bulky, tall, and thick. (TA.) A2:  See also عَيْثَامٌ.عَيْثَمِىٌّ The wild ass; (K, TA;) so called because of his bigness, or bulkiness, and strength. (TA.) عَيْثَامٌ (in the T, voce دُلْبٌ, written ↓ عَيْثَمٌ,) A species of tree; (S, K, TA;) said to be the same as the دُلْب [q. v.]; it is a white tree, that grows very tall: n. un. with ة. (TA.) A2:  Also A certain sort of food, in which locusts are cooked; (K, TA;) of the food of the people of the desert. (TA.) عَيْثُومٌ A great camel. (As, S. [See also عَيْتُومٌ.]) And Anything big, or bulky, and strong. (TA.) b2:  And The female elephant: (El-Ghanawee, S:) or the elephant, male and female: (K:) pl. عَيَاثِمُ. (TA.) b3:  And The ضَبُع [i. e. hyena, or female hyena]. (A'Obeyd, S, K.) عَثَمْثَمٌ Strong; applied to a camel; (AA, S;) and to a mule; and likewise to a shoulder: (IAar, TA:) or, applied to a camel, strong and tall: (K, TA:) or tall and thick: or big, or bulky: (TA:) fem. with ة: (AA, S, K, TA:) pl. عَثَمْثَمَاتٌ. (TA.) b2:  And The lion: (AA, S, K:) so called because of the heaviness of his tread. (AA, S.)