delitescent

delitescent \del-i-TES-uhnt\, adjective:

concealed; hidden; latent.

"I am a delitescent writer." "What does that mean?" It means I didn't start the book.
-- Rex Stout, Double for Death, 1939

He obviously detected some delitescent power within Claudie, or some power which he would create and set there, something hidden from the rest of us…
-- Stephen Glazier, The Lost Provinces, 1981

Delitescent comes from the Latin word dēlitēscere meaning "to hide away."