Refers to the fundamental basis or underlying foundation of something, often used in abstract contexts such as ideas, systems, or principles.
At the root of this problem is a flaw in the education system.
彼の理論は、その前提が根底から覆された。
His theory was overturned from its very foundation.
That way of thinking is at the root of his philosophy.
That discovery overturned the conventional theory from its foundations.
The scandal shook the very foundation of trust in the company.
A strong sense of justice underlies his actions.