"Scrub" is a word in ENGLISH

One who labors hard and lives meanly; a mean fellow.

A thicket or jungle, often specified by the name of the
prevailing plant; as, oak scrub, palmetto scrub, etc.

Mean; dirty; contemptible; scrubby.

To rub hard; to wash with rubbing; usually, to rub with a
wet brush, or with something coarse or rough, for the purpose of
cleaning or brightening; as, to scrub a floor, a doorplate.

To rub anything hard, especially with a wet brush; to
scour; hence, to be diligent and penurious; as, to scrub hard for a
living.

One of the common live stock of a region of no particular
breed or not of pure breed, esp. when inferior in size, etc.

A worn-out brush.

Something small and mean.