(horticulture) To remove thatch (build-up of organic matter on the soil) from a lawn, to dethatch.
To make scratches or cuts on, particularly in horticulture to damage the seed coat for faster germination, to break up or roughen surfaces, and to create designs on one's skin as a form of body modification.
To harrow the feelings.
(obsolete or nonstandard) To scar.
(obsolete or nonstandard) Denude, or lay waste to.