مَلْسٌ

Also, مَلْسٌ, (A, K,) or مَلَسٌ, (S, M,) The confusedness of the darkness: (S, M, A, K:) or it is after the مَلَث, (M,) or مَلْث: (TA:) the ملث is the first, or commencement, of the blackness of the west; and the ملس is when the blackness has become intense, so that the time of the last عِشَاء comes; then the ملس becomes confounded with the ملث, and the one is not distinguished from the other. (IAar.) You say, الظَّلَامِ أَتَيْتُهُ مَلَسَ, (S, M,) or مَلْسَ الظلام, (TA,) I came to him when the darkness had become confused; (S, TA;) when the night had become confused with the earth. (TA.) The word is used adverbially and otherwise. (M.) See مَلَسَ الظَّلَامُ.