'Graffed' in the Bible

And if some of the branches be broken off, and thou, being a wild olive tree, wert graffed in among them, and with them partakest of the root and fatness of the olive tree;

Thou wilt say then, The branches were broken off, that I might be graffed in.

And they also, if they abide not still in unbelief, shall be graffed in: for God is able to graff them in again.

For if thou wert cut out of the olive tree which is wild by nature, and wert graffed contrary to nature into a good olive tree: how much more shall these, which be the natural branches, be graffed into their own olive tree?