de rigueur

Humans spent a long time domesticating cattle, and what they were trying to do, in essence, was de-domesticate them.

The band was still on its way back as De Blasio and his wife departed.

Yet even after the funeral protest, de Blasio was booed and heckled while addressing a new class of recruits as well.

Madame de Condillac stood watching him, her face composed, her glance cold.

Then the door opened, the portiere was swept aside, and Anselme announced "Monsieur de Garnache."

San Antonio de Bexar lies in a fertile and well-irrigated valley, stretching westward from the river Salado.

One evening, while he was thus engaged, he observed de Patinos and Duke Wharton enter together.

Without any known cause of offence, a tacit acknowledgement of mutual dislike was shewn by Louis and de Patinos.