اثفرهُ

He bound, tied, or fastened, upon him a ثَفَر [or crupper]; (S, M, A, Msb, K;) namely, a beast, a horse, an ass, or a camel: (S, * M, * TA, &c.:) or he made for him (namely, a camel or an ass &c., TA) a ثَفَر [or crupper]. (M, K.) [Hence,] أَثْفَرْتُهُ بَيْعَةَ سُوْءٍ (tropical:) [apparently I imposed upon him a bad sale so that he could not rid himself of it; lit.] I stuck a bad sale to his backside. (A, K.)

(tropical:) He drove him, or urged him on, from behind; (A, K;) as also ↓ ثفّرهُ, verbal noun تَثْفِيرٌ; (K;) in some copies of the K, ↓ ثَفَرَهُ, aorist ثَفُرَ . (TA.)

اثفرت She (a goat) showed, or gave evidence of, pregnancy, or bringing forth. (K: in the CK, بَيَّنَتِ الوِلادَ: in MS. copies of the K, and in the TA, الوِلَادَة.)