The Collaborative International Dictionary
Giantize
Giantize \Gi"ant*ize\, v. i. [Cf. F. g['e]antiser.]
To play the giant. [R.]
--Sherwood.
Wiktionary
giantize
vb. (context transitive English) To make giant or gigantic; to increase to huge proportions.
Usage examples of "giantize".
And might I further guess that it is specifically this giantizing property of the sap which you crave it for?