tusking

“He had Donna racing up and down the enclosure, with Donna roaring, rumbling, rolling around on her back, tusking the ground, and then she came at him full force and was met head on with his young but growing brow and tusks.”

Simon & Schuster: The Elephant's Secret Sense

“They also shot the large bellowing walruses visible through telescopes tusking away for oysters along the shores, and some hunting parties returned with the pelts and flesh of the white arctic fox.”

The Terror

“He knew he was near; but for the thick darkness he could have plainly seen its stark outline tusking the horizon.”

Wings in the Night

“Most human beings -- especially in these "centres of civilisation," which are more hideous than anything the sun has looked upon since it watched the mammoths tusking the frozen earth or the ichtheosauruses wallowing in the primeval mud -- go through this life blindly, mechanically, unconsciously, fulfilling their duties, snatching at their pleasures, and shuddering at the thought of the end.”

Suspended Judgments Essays on Books and Sensations

“But the elephants, jammed together, tusking each other, and rooting the camp to pieces, had passed on, not knowing that they had left a living man behind them.”

The Pools of Silence

“They stamped and trod the fire out, smashing tent poles and chop boxes, stores and cooking utensils, tusking one another in the tight-packed _mêlée_, and the scream of the trumpeting never ceased.”

The Pools of Silence

“Now, many a crown was doffed; scepters laid aside; girdles slackened; and among those verdant viands the bearded kings like goats did browse; or tusking their wild boar's meat, like mastiffs ate.”

Mardi: and A Voyage Thither, Vol. I (of 2)