fraternization

Etymology
From.

Noun

 * 1) The act of fraternizing or uniting as brothers.
 * 2) Having a friendly relationship with the enemy.
 * 3)  any type of disallowed, supposedly unethical and unprofessional, social or intimate contact between employees, especially between different gender, class or rank.

Translations

 * Arabic: مُؤَاخَاة
 * Bulgarian: побратимяване
 * Catalan: confraternització
 * French:
 * German:
 * Greek: ,
 * Polish: bratanie się,