The Collaborative International Dictionary of English v.0.48:

Nethinim \Neth"i*nim\, n. pl. [Heb., pl. of n[=a]th[imac]n
   given, granted, a slave of the temple, fr. n[=a]than to
   give.] (jewish Antiq.)
   Servants of the priests and Levites in the menial services
   about the tabernacle and temple.
   [1913 Webster]