cache
noun /kæʃ/
  /kæʃ/
- a hidden store of things such as weapons
- an arms cache
 
 - (computing) a part of a computer’s memory that stores copies of data that is often needed while a program is running. This data can be accessed very quickly.Topics Computersc2
 
Word Originlate 18th cent.: from French, from cacher ‘to hide’.