[Fifth]: for this you also say خَامٍ; (ISk, S, K;) whence the phrase, جَايءَ فُلَانٌخَامِيًا [Such a one came fifth], for خَامِسًا: (ISk, S:) [feminine with ة.]
2.
[خَامِسَ عَشَرَ and خَامِسَةعَشْرَةَ, the former masculine and the latter feminine, meaning Fifteenth, are subject to the same rules as ثَالِثَ عَشَرَ and its feminine, explained in article ثلث, q. v.]
3.
-A2- إِبِلٌ خَامِسَةٌ (TA) and خَوَامِسُ (S, K) Camels that drink on the fifth day, counting the day of the next preceding drinking as the first: [see خِمْسٌ:] (TA:) or that pasture three days, coming to the water on the fourth day [not counting the day of the next preceding watering]. (S, K.)