Rabbi Elazar ben Arach
The paradigm of חידוש
The original מעיין המתגבר
Was drawn after wine and bathing
Disconnected from his Torah
And forgot it
Instead of reading
החדש הזה לכם
He read
החרש היה לבם
Dalet and chof resemble resh and beis
Confusing them seems reasonable
But a yud instead of a zayin
Is a chiddush