bedrock
/ˈbɛdrɑk/Definitions
1. noun
the solid underlying mass of rock that forms the base of a mountain or hill; the most basic or essential part of something.
“The foundation of the new building was built on solid bedrock.”
2. verb
to establish or confirm something firmly in one’s mind or in a particular situation.
“After the crisis, the company’s financial stability was bedrocked by the government’s support.”