recondite

ot noun

1. A recondite (hidden or obscure) person or thing.
2. A scholar or other person who is recondite, that is, who has mastery over his or her field, including its esoteric minutiae.

sifat adjective

1. Of areas of discussion or research: difficult, obscure.
2. (somewhat obsolete) Hidden or removed from view.

fe’l verb

1. To conceal, cover up, hide.