heyday

¹

Or hey·dey

[hey-dey]

noun

1. the stage or period of greatest vigor, strength, success, etc.; prime.

   the heyday of the vaudeville stars.

2. Archaic.,  high spirits.

heyday

²

[hey-dey]

interjection

Archaic.

1. (used as an exclamation of cheerfulness, surprise, wonder, etc.)

heyday

/ ˈheɪˌdeɪ /

noun

1. the time of most power, popularity, vigour, etc; prime

Word History and Origins

Origin of heyday¹

1580–90; variant of high day, apparently by confusion with heyday ²

Origin of heyday²

1520–30; rhyming compound based on hey; replacing heyda < German hei da hey there

Word History and Origins

Origin of heyday¹

C16: probably based on _hey

Example Sentences

The financial-technology sector has struggled to live up to its pandemic-era heyday, and that has meant some pain for Block investors recently.

Read more on MarketWatch

Down this road lies an obvious risk for the left: Bill Clinton and friends, who were the real power elite Epstein sought to cultivate in his criminal heyday.

Read more on The Wall Street Journal

Consumer tastes have changed dramatically since Coke’s heyday, and Vita Coco has responded with a product mix that should quench investors’ thirst for growth and reasonable value.

Read more on Barron's

In the heyday of the ’70s, costumes were just that — costumes.

Read more on Los Angeles Times

The political right, perhaps more than ever, needs the type of guidance that Heritage provided in its heyday.

Read more on The Wall Street Journal