Strong's #3143: marturomai (pronounced mar-too'-rom-ahee)

middle voice from 3144; to be adduced as a witness, i.e. (figuratively) to obtest (in affirmation or exhortation):--take to record, testify.

Thayer's Greek Lexicon:

́

marturomai

1) to cite a witness, bring forward a witness, call to witness

1a) to affirm be appeal to God, to declare solemnly, protest

2) to conjure, beseech as in God' s name, exhort solemnly

Part of Speech: verb

Relation: middle voice from G3144

Citing in TDNT: 4:510, 564

Usage:

This word is used 3 times:

 

Acts 20:26: "Wherefore I take you to record this day, that I am pure"
Galatians 5:3: "For I testify again to every man that is circumcised, that he is"
Ephesians 4:17: "I say therefore, and testify in the Lord, that ye henceforth walk not"