world of good, a

1. A great benefit, as in A vacation will do you a world of good. This expression uses world in the sense of “a great deal,” a usage dating from the 1400s. [Late 1800s]

Example Sentences

At Berkeley — where I got my MBA — I helped create World of Good — a green, sustainable, venture-backed startup for women that eBay acquired in 2010.”

From Forbes

I have had some Christmas presents that did me a world of good—a little book mark, for instance, that a certain niece of mine worked for me, with wonderful secrecy, three years ago, when she was not a young lady with a purse full of money—that book mark was a true Christmas present; and my young couple across the way are plotting a profound surprise to each other on Christmas morning.

From Project Gutenberg

If you had to pay for the world of good a Cluthe Truss does, the price would be many times higher.

From Project Gutenberg