The perfect is of this verb still appears regularly in Old Aramaic and Official Aramaic. In the later dialects it is regularly suppletively used in the pre-formative patterns for the even more irregular yhb. In Syriac (and less commonly CPA as a borrowing thereof) the dative preposition is assimilated to the end of the word, yielding the new root ntl. In Babylonian, ntn and yhb merge producing ntb (see s.v. yhb).
In all these instances, users should also consult s.v. yhb for possible semantic values.