ROOTAGE

beginning, origin, root, rootage, source

(noun) the place where something begins, where it springs into being; “the Italian beginning of the Renaissance”; “Jupiter was the origin of the radiation”; “Pittsburgh is the source of the Ohio River”; “communism’s Russian root”

rootage, root system

(noun) a developed system of roots

rootage

(noun) fixedness by or as if by roots; “strengthened by rootage in the firm soil of faith”

Source: WordNet® 3.1