Strong's G3011 — λειτουργός (noun)
leitourgos (lei-tourg-os') n.
1. a public servant, i.e. a functionary in the Temple or Gospel
2. (genitive case) a worshipper (of God) or benefactor (of man)
[from a derivative of G2992 and G2041]
KJV: minister(-ed) 
Root(s): G2992, G2041 
Hebrew root: ἔργον
Occurrences: 5