The crossword solution for the term DISCOVER WITH 'OUT' is FERRET. The word FERRET is derived from the Latin word furittus, which means 'little thief'. Ferrets are small, carnivorous mammals that are often kept as pets. They are known for their inquisitive and playful nature, and they have a reputation for being able to find things that are hidden or lost. Therefore, the term DISCOVER WITH 'OUT' can be interpreted as finding something without the use of a FERRET.