خَوْنٌ

a verbal noun of 1. (S, Msb, K.)

And [hence,] (tropical:) Weakness. (JK, K, TA.) One says فِى ظَهْرِهِ خَوْنٌ (tropical:) In his back is weakness. (JK, TA.)

And (assumed tropical:) Languidness in the sight. (K.)