To draw a harrow over (land); SYN. disk.

ETYM Old Eng. harowe, harwe, AS. hearge; cf. Dutch hark rake, German harke, Icel. herfi harrow, Dan. harve, Swed. harf.
A cultivating implement that pulverizes or smoothes the soil.
Agricultural implement used to break up the furrows left by the plow and reduce the soil to a fine consistency or tilth, and to cover the seeds after sowing. The traditional harrow consists of spikes set in a frame; modern harrows use sets of discs.

Outer London borough of NW Greater London
features
Harrow School (1571)

famous people
R B Sheridan, Charles Kingsley, Robert Ballantyne, Matthew Arnold, Anthony Trollope.