Come to the last clause. In the long Latin grace at St. John's College, Cambridge, the last clause used to be “Tu autem miscrere mei, Domine, Amen.” It was not unusual, when a scholar read slowly, for the senior Fellow to whisper “Tu autem”—i.e. Skip all the rest and give us only the last sentence.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
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