'Root' in the Bible

and if the first-fruit is holy, the lump also; and if the root is holy, the branches also.

And if certain of the branches were broken off, and thou, being a wild olive tree, wast graffed in among them, and a fellow-partaker of the root and of the fatness of the olive tree didst become --

do not boast against the branches; and if thou dost boast, thou dost not bear the root, but the root thee!

and again, Isaiah saith, 'There shall be the root of Jesse, and he who is rising to rule nations -- upon him shall nations hope;'