the world > the earth > structure of the earth > formation of features > soil formation > [verb (intransitive)] > form specific type of soil (4)
To form or turn into clods; formerly also to run into clots, to clot, v. (sense 3). transitive and intransitive.
intransitive. Of soil: to become soft and loamy. Now English regional.
transitive and intransitive. To render or become podzolic.
intransitive to change into a solod.