Sub rosa

They held the meeting sub rosa.

By the by, I wonder some of you lawyers (sub rosa, of course) have not quoted the pithy lines in Mandeville […]

I run my boat into New York, buy from Yankee firms, sub rosa, of course, and away I go.

He began a sub rosa campaign of obstruction, terror and depredation along the Thurn and Taxis mail routes.

Questions about Esparza's surveillance practices were exacerbated by an incident in December 2003, in which another subject of a sub-rosa complained of being followed by Esparza wielding a video camera.