acerbate

Fires ravaging huge swaths of countryside only acerbate the climate crisis, he said.

From Seattle Times ● Jul. 7, 2022

There seemed to be a danger that Kennedy's straight talk might even further acerbate Franco-American relations.

From Time Magazine Archive

Lady Laura had triumphed; but she had no desire to acerbate her husband by any unpalatable allusion to her victory.

From Phineas Finn The Irish Member by Trollope, Anthony

The poor girl had not spirit sufficient to upbraid her friend; nor did it suit her now to acerbate an enemy. 

From The Way We Live Now by Trollope, Anthony

Schalke’s recent frustrations have been acerbated by Dortmund’s relative success in establishing itself as Bayern’s greatest challenger.

From Washington Times ● Mar. 30, 2017

Helped by Nixon's admiration for De Gaulle, the acerbated diplomatic relations between the U.S. and France became better than they had been in more than a decade.

From Time Magazine Archive

And the bitter struggles for control, perhaps acerbated because of the family relationship among the partners, were now a thing of the past.

From History of the Comstock Patent Medicine Business and Dr. Morse's Indian Root Pills by Shaw, Robert B.

This iniquity on the part of Lady Frances, this disgrace which made her absolutely tremble as she thought of it, this abominable affection for an inferior creature, acerbated her feelings even against Lord Hampstead.

From Marion Fay by Trollope, Anthony

They are often perturbed and acerbated, and sometimes diverted from their proper course by the winds of adverse comment.

From Days Off And Other Digressions by Van Dyke, Henry

At first they were both extremely angry, acerbating each other's wrath.

From Ayala's Angel by Trollope, Anthony

Lord Palmerston, too, was a typical example of a leader lulling, rather than arousing, assuaging rather than acerbating the minds of his followers.

From The English Constitution by Bagehot, Walter