rootage

名词 rootage:

1. fixedness by or as if by roots
2. a developed system of roots
   同义词：root system
3. the place where something begins, where it springs into being
   同义词：beginning, origin, root, source

root.age

n.（名词）
A system or growth of roots.
根部生根：根系或根的生长
Establishment by or as if by roots.
根深蒂固：像根一样巩固