Hazel takes its name from the hazel tree, long associated in folk tradition with wisdom and protective qualities -- hazel wood was often used for divining rods and walking sticks. The name is commonly read as carrying a grounded, sheltering quality, wisdom understood as practical rather than purely intellectual.
When a Planet is within five degrees of the cusp of any house, it shall be accounted to have virtue in that house though actually posited behind the cusp in another house. - Cardan Girolamo (1501-1576)