undergrow
verbEtymology From under- + grow.
1
To grow to an inferior, or less than the usual, size or height.
2
To grow underneath.
- Descending the side of the levee, he penetrated the rank density of weeds and willows that undergrew the trees until the river's edge, shouting Victor's name.1910, O. Henry [pseudonym; William Sydney Porter], “(please specify the story)”, in Strictly Business: More Stories of the Four Million, New York, N.Y.: Doubleday, Page & Company, →OCLC: