CLANDESTINE

[clan.des.tine] adj [MF or L; MF clandestin, fr. L clandestinus, fr. clam secretly; akin to L celare to hide--more at hell] (1566): marked by, held in, or conducted with secrecy: surreptitious syn see secret -- clan.des.tine.ly adv -- clan.des.tine.ness n -- clan.des.tin.i.ty n