childproof

Etymology
From.

Adjective

 * 1) Designed to be unable for a child to use, operate, or open.
 * Because of her arthritis, she always asked not to have childproof caps on her medicine bottles.
 * 1) Made safe for children.
 * They attempted to make the house childproof by covering all sharp corners with soft foam.
 * 1) Made safe from children; resistant to damage by children.
 * After several visits from his darling nephews, Mike's bookshelves were childproof; all breakables and valuable books had been moved out of reach.

Verb

 * 1) To make something childproof.
 * I debated childproofing my house, but decided against, on the basis that any scars or burns would serve as object lessons in restraint.