Mark Dever
To evangelize is to declare on the authority of God what he has done to save sinners, to warn men of their lost condition, to direct them to repent, and to believe in the Lord Jesus Christ.

Evangelion (that we call the gospel) is a Greek word and signifieth good, merry, glad and joyful tidings, that maketh a man's heart glad and maketh him sing, dance, and leap for joy.
William Tyndale