Dict: strongs - mystery
Strongs:
H7328 @ רז râz rawz (Chaldee); from an unused root probably meaning to {attenuate} that {is} (figuratively) hide; a mystery: - secret.
G3466 @ μυστήριον mustērion moos-tay'-ree-on From a derivative of μύω muō (to shut the mouth); a secret or mystery (through the idea of silence imposed by initiation into religious rites): - mystery.
G899 @ βάθος bathos bath'-os From the same as G901; profundity that is (by implication) extent; (figuratively) mystery: - deep (-ness things) depth.