A word coined in a letter

The three princes

Serendipity · 28 January 1754 · A letter, Strawberry Hill to Florence

serendipity

DocumentA coinage. Accidental sagacity, he said, of the three princes of Serendip.

He needed a word for finding what you were not looking for.

Walpole tells Mann he has made a discovery, in part by accident, and he wants a word. He remembers a fairy tale: the three princes of Serendip, who were always making discoveries, by accidents and sagacity, of things they were not in quest of. He calls this serendipity.

Accident and sagacity. Both.

Concordance

The thing
A letter that names a kind of happy accident and ties it to a story.
Seen
Walpole writes of discoveries made by accident and sagacity.
Sourced
The Yale edition of Walpole’s correspondence. Letter of 28 January 1754.
Miss
Later usage often drops sagacity and keeps only luck.
One question remains
What is lost when luck is kept and sagacity is dropped?