Naidus

NAIDUS nā’ ə dus (A, Νάειδος, B, Νάαιδος). One of those who had married foreign wives in the time of Ezra (1 Esd 9:31); apparently corresponding to Benaiah of Ezra 10:30.

International Standard Bible Encyclopedia (1915)

One of those who had taken "strange wives" (1 Esdras 9:31), apparently equals "Benaiah" of Ezr 10:30, of which it is probably a corruption or the latter part.