Other forms: forefingers
The forefinger is the pointing digit next to the thumb. The one you use to press, point and accuse.
Index finger is the commoner name now and means exactly the same thing, from the Latin for pointing out. It is the most dexterous of the four in combination with the thumb, which is why almost every precise action uses that pair. It is also the trigger finger. Pointing with it is rude in a great many cultures, which travellers discover the hard way.
1nounforefingerThe finger next to the thumb, used for pointing.
“He tapped the map with a forefinger.”
Also accepted in games: index finger
Middle English
forefynger
English, today
forefinger
Mid-15th century, from Middle English forefynger; equivalent to fore + finger.
Etymology from Wiktionary, CC BY-SA