the world > the earth > structure of the earth > formation of features > soil formation > [verb (transitive)] > form specific type of soil (3)
To form or turn into clods; formerly also to run into clots, to clot, v. (sense 3). transitive and intransitive.
transitive. To make (soil) soft and loamy; to render (land) suitable for cultivation. Now English regional.
transitive and intransitive. To render or become podzolic.