from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A blunt arrow used for target practice.
from the GNU version of the Collaborative International Dictionary of English
- An arrow without a barb, for shooting at butts; an arrow.
from The Century Dictionary and Cyclopedia
- n. A blunt or unbarbed arrow used for shooting at a target. Also spelled but-shaft.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a blunt arrow without a barb; an arrow used for target practice
Probably from butt4.(American Heritage® Dictionary of the English Language, Fourth Edition)