Other forms: forelocks
The part of a horse's mane that falls across the front of its face like bangs is called a forelock. It's also an old fashioned way to describe a person's bangs.
Forelock comes from the Old English forelocca, from fore, "before in position," and locc, "curl or lock of hair." It originally meant simply "a lock of hair above the forehead," and in the 1800s, men commonly greeted each other by "tugging the forelock." Today people are likely to assume you're talking about a horse if you use the word forelock.