5 occurrences in 5 dictionaries
Reference: Mehuman
Easton
faithful, one of the eunchs whom Ahasuerus (Xerxes) commanded to bring in Vashti (Es 1:10).
Fausets
Hastings
One of the seven eunuchs in attendance upon king Ahasuerus (Es 1:10).
Morish
Mehu'man
One of the seven chamberlains of Ahasuerus. Es 1:10.