Recondite (adj)
rek-on-dait
(of a subject or knowledge) little known; abstruse.
Mid 17th century: from Latin reconditus ‘hidden, put away’, past participle of recondere, from re- ‘back’ + condere ‘put together, secrete’.
Example sentences
“The whole book series if full of recondite information.”

Soigné (adj) swahn-yay Carefully or elegantly done, operated, or designed First recorded in 1915–20. Borrowed directly from French; originally from soin, meaning “care.” (more…)