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v. Present participle of greaten.

"But as I left Cairo in the greatening distance, floating onward to the heart of the mysterious river, I floated also into the twin current of thought, that, flowing full and impetuous from the shores of the peopled Mediterranean, follows the silent river, and tracks it to its hidden lurking-place in the blank desert."

greatened    greatening    greatens   

engreaten   

aggrandize    expand    dilate    enlarge