طرء

مطرئ ذ [thus written, without any syll. signs, in the TA, and there said to be the subst. (اِسْم) from أَطْرَأَهُ: but I think that it is evidently مُطْرِئٌ; and not the subst., but the act. part. n. (اِسْمُ الفَاعِلِ), of أَطْرَأَهُ].