knoll¹ /nōl/ (Scot knowe /now/)

1. A round hillock
2. The top of a hill (dialect)

• hydria
• hydriae
• hydric
• hydrically
• hydride
• hydrides
• hydriodic
• hydro
• hydro-
• hydro-aeroplane
• hydro-aeroplanes
• hydro-airplane
• hydro-airplanes
• hydrobiological
• hydrobiologies
• hydrobiologist
• hydrobiologists
• hydrobiology
• hydrobromic
• hydrocarbon
• hydrocarbons
• hydrocele
• hydroceles
• hydrocellulose
• hydrocelluloses