ascot
A broad- or narrow-necked scarf knotted around the neck so that it ends in a wide-tipped "tail".
Also known as a cravat in British English.
Examples
- Danbooru post #5313851: Three layers of frills or more
- Danbooru post #5363071: Visibly around the neck
- Danbooru post #5382270: Necktie knot
- Danbooru post #5152296: White lace or lace trim
- Danbooru post #3599436
- Danbooru asset #23804116: Military ascot