Roots definition

Grass roots efforts to assist people in need.

If that Alex returned to his roots, there was no reason she couldn't be at his side.

Under the most splendid house in the city is still to be found the cellar where they store their roots as of old, and long after the superstructure has disappeared posterity remark its dent in the earth.

Grabbing the worn roots of an old tree, she climbed out of the pool.

That's Roman wormwood--that's pigweed--that's sorrel--that's piper-grass--have at him, chop him up, turn his roots upward to the sun, don't let him have a fibre in the shade, if you do he'll turn himself t' other side up and be as green as a leek in two days.