root·stock 
(rtstŏk′, rt-)
(rtstŏk′, rt-)n.
1. A root system of a plant, often with a portion of the stem, to which a shoot or bud is grafted.
2. See rhizome.
- South African
- South America
- South American
- Southampton
- Southampton
- Southampton Island
- South Asia
- South Asian
- South Atlantic Ocean
- South Australia
- South Beach
- South Bend
- South Boston
- southbound
- south by east
- south by west
- South Carolina
- South Carolinian
- South Caucasian
- South China Sea
- South Dakota
- South Dakotan
- Southdown
- South Downs
- southeast