ثَامِنٌ
1.
[Eighth: feminine with ة]. (S, K, &c.)
2.
[ثَامِنَ عَشَرَ and ثَامِنَةَ عَشْرَةَ, the former masculine and the latter feminine, meaning Eighteenth, are subject to the same rules as ثَالِثَ عَشَرَ and its feminine, explained in article ثلث, q. v.]
3.
إِبِلٌ ثَوَامِنُ, [the latter word plural of ثَامِنَةٌ,] Camels that come to water on the eighth night [after the next preceding watering]: from ثِمْنٌ. (TA.)