What is "hough-on-the-hill"

Hough-on-the-Hill is a village and civil parish in the South Kesteven district of Lincolnshire, England. The population of the civil parish including Brandon was 399 at the 2011 census. It is situated approximately due north from the market town of Grantham. The hamlets of Gelston and Brandon are part of the parish. Hough-on-the-Hill is on a significant rise, hence the name.