Com"post (?; 277), n.[OF. compost, fr. L. compositus, p. p. See Composite.] 1. A mixture; a compound. [R.]

A sad compost of more bitter than sweet.
Hammond.

2. (Agric.) A mixture for fertilizing land; esp., a composition of various substances (as muck, mold, lime, and stable manure) thoroughly mingled and decomposed, as in a compost heap.

And do not spread the compost on the weeds
To make them ranker.
Shak.

Com"post, v. t. 1. To manure with compost.

2. To mingle, as different fertilizing substances, in a mass where they will decompose and form into a compost.

• (uncountable) the decayed remains of vegetable matter that has rotted
       Dig plenty of compost into clay or sandy soil to improve its structure.
  
• to produce compost
       If you compost your grass clippings, you can improve your soil.