3140  martureo  mar-too-
reh'-o

 from 3144; to be a witness, 
i.e. testify (literally or 
figuratively):--charge, give 
(evidence), bear record, have 
(obtain, of) good (honest) 
report, be well reported of, 
testify, give (have) 
testimony, (be, bear, give, 
obtain) witness.

 see GREEK for 3144