Meaning

noun a cultivator that pulverizes or smooths the soil

verb draw a harrow over (land)

originFrom Middle English harwe, harow, from Old English *hearwa (perhaps ultimately cognate with harvest), or from Old Norse harfr/herfi; compare Danish harve (“harrow”), Dutch hark (“rake”). Akin to Latin carpere. According to the OED, the verb senses are partly derived from the noun sense, partly from a by-form of the verb harry, itself from Old English hergian.

Etymology from Wiktionary, CC BY-SA 3.0