نَسَّابٌ

(K) and ↓ نَسَّابَةٌ (S, K.) Skilful in genealogy: (K:) [or rather, the former signifies very skilful in genealogies; or a great genealogist:] the latter, possessing the utmost knowledge in genealogies; or a most skilful genealogist: [this being of a doubly intensive form;] the ة being annexed to render the epithet one of excessive praise: (S:) plural of the former نَسَّابُونَ, and of the latter نَسَّابَاتٌ: (TA:) you say عِنْدِى ثَلَاثَةُ نسّاباتٍ, meaning ثلاثة رِجَالٍ نسّاباتٍ. (S.)