[f. BUSH v.1 + -ING2.] Growing or spreading like a bush.
1608. Tourneur, Rev. Traj., V. iii. That bushing-staring star.
1688. R. Holme, Armoury, II. 89/2. Fine leaves, bushing and spreading over the ground.
1725. Pope, Odyss., IX. 164. The bushing alders formd a shady scene.