camaraderie

toveruus Close friendship in a group of friends or teammates.
{{quote-journal|date=February 8, 2016
A spirit of familiarity and closeness
1838, Caulincourt, Napoleon and his Times, http://books.google.com/books?id=-g4WAAAAYAAJ&printsec=frontcover&dq=intitle:Napoleon+intitle:and+intitle:his+intitle:Times&lr=lang_en&as_drrb_is=b&as_minm_is=2&as_miny_is=1500&as_maxm_is=5&as_maxy_is=1841&as_brr=0&cd=1v=onepage&q=camaraderie&f=false Volume 1, page 175:

There was not one of Napoleon's intimate friends, however high in rank, who would have ventured to indulge in the sort of camaraderie which was kept up between the Emperor and his old moustaches.