Crutch (noun)

  1. A support for the hand used to help a person walk when they have a problem with their legs.
  2. A support used to help a person walk when they are injured or disabled.
  3. Something that is relied on too much to support something else.

Origin:

From old english crutch, meaning a staff or support.

Examples:

  1. He walked with a crutch because of his broken leg.
  2. She used crutches after her surgery.
  3. The company was using the new product as a crutch for their failing business.
  4. The crutches helped him to get around after his injury.
  5. The crutch helped him to stand up.
Some random words: co-pilot, ineffable, shilling