faller

Short definition from Wiktionary

Noun

1. 1
   One who falls.
2. 2
   A fruit that falls from the tree, rather than being picked.
3. 3
   A part which acts by falling, such as a stamp in a fulling mill, or the device in a spinning machine to arrest motion when a thread breaks.
4. 4
   Synonym of feller (“one who cuts down trees”).

Proper noun

1. 1
   A surname.