Strong's #4956: sustatikos (pronounced soos-tat-ee-kos')
from a derivative of 4921; introductory, i.e. recommendatory:--of commendation.
Thayer's Greek Lexicon:
́
sustatikos
1) commendatory, introductory
Part of Speech: adjective
Relation: from a derivative of G4921
Usage:
This word is used 2 times:
2 Corinthians 3:1: "we, as some others, epistles of commendation to you, or letters of commendation"
2 Corinthians 3:1: "to you, or letters of commendation from you?"