The phrase is much older than that.. >Grose's The Dictionary of the Vulgar Tongue - 1811: >>To send one to Coventry; a punishment inflicted by officers of the

The phrase is much older than that.. >Grose's The Dictionary of the Vulgar Tongue - 1811: >>To send one to Coventry; a punishment inflicted by officers of the army on such of their brethren as are testy, or have been guilty of improper behaviour, not worthy the cognizance of a court martial. The person sent to Coventry is considered as absent; no one must speak to or answer any question he asks, except relative to duty, under penalty of being also sent to the same place. On a proper submission, the penitent is recalled, and welcomed by the mess, as just returned from a journey to Coventry.[0] https://en.wikipedia.org/wiki/Send_to_Coventry https://en.wikipedia.org/wiki/Send_to_Coventry