ثمن

ثَامِنٌ ثامن [ Eighth: fem. with ة]. (S, K, &c.) ― -b2- [ثَامِنَ عَشَرَ and ثَامِنَةَ عَشْرَةَ, the former masc. and the latter fem., meaning Eighteenth, are subject to the same rules as ثَالِثَ عَشَرَ and its fem., explained in art. ثلث, q. v.] ― -b3- اـِبِلٌ ثَوَامِنُ, [the latter word pl. of ثَامِنَةٌ,] Camels that come to water on the eighth night [ after the next preceding watering ]: from ثِمْنٌ. (TA.)