Fall to

Titus: Come, let's fall to; and, gentle girl, eat this.

In the middle of it, in front of the little public house, stood, all that day and the next, a group of men and women, for no five minutes in its component parts the same, but, like a cloud, ever slow dissolving, and as continuously reforming, some dropping away, others falling to.

[H]e is interrupted by the arrival of a hamper of wine . . . upon the receipt of which he sends for three friends, and they fall to instantly, drinking two bottles apiece.

[T]he floor was thick with a litter of rubbish. . . . Duncan surveyed it ruefully, but with the will to do strong in him, took off his coat, turned up his trousers, and fell to.

Many a reader whose appetite rejoices in hearty fare tucked in his napkin, smacked his lips and fell to with a will.