See quot. 1850.

1

1850.  Richard took an axe, and very neatly proceeded to “butt” a log; that is, to cut the end of it square off.—S. Judd, ‘Richard Edney,’ p. 41.

2

1880.  If we were buying the logs, we should try to get enough off the scale to pay for the butting.Northwestern Lumberman, Jan. 24 (N.E.D.).

3