The Greek word “atenizo”

Found primarily in the book of Acts but also used a few times in Luke and Second Corinthians, the Greek verb “atenizo” meant “stare,” “look intently,” “fix one’s eyes.” This term almost always “seems to emphasize the intensity of the look” (Dictionary of New Testament Theology, 3:520).

Some people “fastened” their eyes on Jesus (Lk. 4:20). The apostles “looked steadfastly” toward heaven (Acts 1:10). Paul “looked steadfastly” on the council” (Acts 23:1).

For all the other places this term is used see Lk. 22:56; Acts 3:4, 12; 6:15; 7:55; 10:4; 11:6; 13:9; 14:9; 2 Cor. 3:7, 13.