All 4 Uses of

rustic
in
The Iliad by Homer - (translated by: Pope)

As the fell boar, on some rough mountain's head, Arm'd with wild terrors, and to slaughter bred, When the loud rustics rise, and shout from far, Attends the tumult, and expects the war; O'er his bent back the bristly horrors rise; Fires stream in lightning from his sanguine eyes, His foaming tusks both dogs and men engage; But most his hunters rouse his mighty rage: So stood Idomeneus, his javelin shook, And met the Trojan with a lowering look.†
Book 13

The rustic monarch of the field descries, With silent glee, the heaps around him rise.†
Book 18

Here herds of oxen march, erect and bold, Rear high their horns, and seem to low in gold, And speed to meadows on whose sounding shores A rapid torrent through the rushes roars: Four golden herdsmen as their guardians stand, And nine sour dogs complete the rustic band.†
Book 18

Definition:

characteristic of rural life; simple without refined touches