English
half-ball
From half- + ball, so called because the view from the cue ball is half eclipsing the object ball.
The story
From half- + ball, so called because the view from the cue ball is half eclipsing the object ball.
Today it means
adj Describes a shot where the cue ball and the object ball make contact at a natural 45º angle.
Language periods are conventional ranges, not dates for this word.
Etymograph / half-ball