Frank Churchill placed a word before Miss Fairfax. She gave a slight glance round the table, and applied herself to it…The word was blunder; and as Harriet exultingly proclaimed it, there was a blush on Jane’s cheek which gave it a meaning not otherwise ostensible…He feared there must be some decided involvement. Disingenuousness and double dealing seemed to meet him at every turn. These letters were but the vehicle for gallantry and trick. It was a child’s play, chosen to conceal a deeper game on Frank Churchill’s part.
– Jane Austen
Emma, Chapter 41. An observant Mr. Knightley suspects some kind of secret understanding and deceit going on between Frank Churchill and Jane Fairfax at Hartfield. He watches as Frank comes up with a word game in which letters of the alphabet have to be unscrambled. The letters he places before Jane make up the word “blunder,” making her blush. This sets off alarm bells for Knightley, who is convinced something is going on between them. He is of course right about Frank’s trickery and deception, for he is hiding the fact that he is engaged to Jane.