دَسِيسَةٌ

[apparently The coming secretly to a person, bringing him calumnies: in modern Arabic, a secret machination or the like]. (TA, where, after the phrase اندسّ فلان الى فلان يأتيه بالنمايءم, (see 7,) it is added, وَهِىَّ الدَّسِيسَةٌ.)