Noun

So twice five miles of fertile ground

With walls and towers were girdled round:

And there were gardens bright with sinuous rills ,

Where blossomed many an incense-bearing tree;

And here were forests ancient as the hills,

Enfolding sunny spots of greenery.

Noun

First, a pearly white, unrelieved, then a trace of faint darkness here and there, and finally, the fine neatly printed equations in black, with an occasional red hairline that wavered through the darker forest like a staggering rillet .

From the green rivage many a fall / Of diamond rillets musical. — Tennyson.