Strong's G1989 — ἐπιστέλλω (verb)
epistello (ep-ee-stel'-lo) v.
1. to enjoin (by writing)
2. (genitive case) to communicate by letter (for any purpose)
[from G1909 and G4724]
KJV: write (a letter, unto) 
Root(s): G1909, G4724 
Hebrew root: στέλλω
Occurrences: 3