Compost \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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Compost \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.

Source: Webster's Revised Unabridged Dictionary (1913)