se·cre·cy 
(sēkrĭ-sē)
(sēkrĭ-sē)n. pl. se·cre·cies
1. The quality or condition of being secret or hidden; concealment: work done in secrecy.
2. The practice or habit of keeping secrets: swore him to secrecy.
[Alteration of Middle English secretee, from secret, secret; see SECRET.]