underlock

English

Etymology

under- +‎ lock

Noun

underlock (plural underlocks)

1. A lock of wool hanging under the belly of a sheep.
   • 1839, British Farmer's Magazine, volume 3, page 187:

     No cloggings, lumps of dirt, or underlocks should be suffered to be rolled up with the fleece, as such a practice is unfair to the purchaser, and by act of parliament there is a heavy penalty attached to those who are convicted of doing it.