ثَفِنَةٌ
1.
[The callosity, or callous protuberance, upon] the knee; and what touches the ground, [in the act of lying down,] of [the callosity upon the breast called] the
كِرْكِرَة
and the
سَعْدَانَة, [two words having the same meaning, for the latter of which the K erroneously substitutes the plural form,] and of [each of the stifle-joints, i. e.,] the roots, or lower parts, of the thighs; of the camel: (M, K: *) plural ثِفَنٌ and ثِفَانٌ (M, K) and ثِفِنَاتٌ: (T, S, M:) the ثَفِنَات of the camel are the parts that fall upon the ground when the animal lies down, and that become rough, or callous, such as the two knees, &c.; (S;) the parts that are next the ground when the camel lies down, one of them being the
كِرْكِرَة, with which they are five in number [as explained above]: or, as some say, the ثَفِنَة is [only the stifle-joint, i. e.,] the joint between the thigh and the
ساق [or leg properly so called], internally, [meaning anteriorly,] and [the knee, i. e.,] the joint between the shank and the arm: (T:) or, according to some, any part that is next the ground, of any quadruped, when he lies down like the camel and like the sheep. (M.)
2.
3.
Hence also, (TA,) The knee of a man: or [so according to the M, but in the K “ and, ”] the place of union of the shank and thigh: (M, K:) [or the lower portion of the fore part of the knee, which becomes callous in consequence of much kneeling: see 3, first sentence. Hence,] 'Abd-Allah Ibn-Wahb Er-Rásibee was surnamed ذُو الثَّفِنَاتِ (S, M, K *) from his much praying, (M,) because long prostration produced an [indurating] effect upon his ثفنات: (S, K:) and 'Alee Ibn-El-Hoseyn Ibn-'Alee, (K, TA,) known by the appellation of Zeyn-el-'Ábìdeen, (TA,) was [likewise] so surnamed, (K, TA,) because those parts of him upon which he prostrated himself were like the ثفنة of the camel in consequence of his much praying: (TA:) so too was 'Alee Ibn-AbdAllah Ibn-El-'Abbás. (A, K.)
4.
الثَّفِنَةُ مِنَ الجُلَّةِ, (K, [in some of the copies of the K الحُلَّة, which, as is said in the TA, is a mistake,]) or ثَفِنَتَا الجُلَّةِ, (AHn, M,) The two edges of the lower part of the
جُلَّة, (AHn, M, K,) [meaning,] of the dates [contained in the receptacle thus called; apparently because the dates in the edges become more dry and hard than the main portion]. (AHn, M.)