2 occurrences in 2 dictionaries

Reference: Nathanmelech

Morish

Na'than-me'lech

Eunuch who had a chamber in the precincts of the temple. 2Ki 23:11.

Smith

Na'than-me'lech

(the gift of the king), a eunuch (Authorized Version "chamberlain") in the court of Josiah.

2Ki 23:11

(B.C. 628.)