magnoperate

To magnify the greatness of (someone or something); to exalt.

[A]fter-ages may rightly admire what noble Mecœnas it was that ſo inchayned the aſpiring wits of this vnderſtanding age to his only cenſure, which will not a little magnoperate the ſplendor of your well knowne Honour, to theſe ſucceeding times.

To act grandly.

Meanwhile you cannot help liking his [Herbert Beerbohm Tree's] Antony—which, of course, is quite the right frame of mind. There is something large and liberal and genial in the man; you are made to feel that, in [Lord] Byron's phrase, he is used to "magnoperating."

At the ris of an anti-climax I will add that another mark of [Edward] Elgar's greatness is that he can do little things and do them well. He has "magnoperated" with the best, but like the other masters he has known how to unbend, and some of his music has become popular in the best sense. It is not given to many musicians to find a song of theirs become, as "Land of Hope and Glory" has, an accepted unofficial national anthem.

To work on one's magnum opus (“great or important work of art, literature, or music, a masterpiece; best, most popular, or most renowned achievement of an artist or author, representing their major life effort”).

Your dwarf of a letter came yesterday. That is right;—keep to your 'magnum opus'—magnoperate away.

He [David Wark Griffith] magnoperates (to use a word of Byron's), he plans in the grand style, he lives for ideas; but he is perfectly modest about it. [Quoting The Times.]