[f. BUTT v.1 + -ING2.]
† a. That projects or juts out. b. That pushes or strikes violently with the head or horns.
1447–8. Shillingford, Lett. (1871), 102. The which postren dores … oughte to stande … in the saide buttyng wall.
1697. Dryden, Virg. Past., III. 135. A Bull … With spurning Heels, and with a butting Head.
