Root and Theory

Root

Root noun - An immaterial thing upon which something else rests.

Usage example: an implicit trust in the wisdom of the people is the root of democracy

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Theory and root are semantically related. In some cases you can use "Theory" instead a noun "Root".

Nearby Words: rooted, rootless, rooter, rooting, rootlet

Theory noun - An idea that is the starting point for making a case or conducting an investigation.

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Root and theory are semantically related. Sometimes you can use "Root" instead a noun "Theory".

common	common root	common theory
complete	complete root	complete theory
certain	certain root	certain theory
single	single root	single theory
Other adjectives: actual, real, last.

Triton's compositional similarities to Pluto are the root of the debunked theory that Pluto was an escaped moon of Neptune.

Source: Useful Notes / The Moons of Neptune
There are also Danzo's ROOT, who have at least in theory had theory ability to 'care'' whether their master is right or wrong trained out of them.

Source: My Master, Right or Wrong
One theory for his name's origin is the root Indo-European word ḱerberos, "spotted." This would mean that Hades, Lord of the Underworld, named his dog "Spot." This theory competes with other much more appropriate origins, such as the Greek word creoboros, meaning "flesh-devouring."

Source: Fluffy the Terrible

Cite this Source

Theory and Root. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/root/theory

Root & Theory. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/root/theory>.

Theory or Root. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/root/theory.

Google Ngram Viewer shows how "root" and "theory" have occurred on timeline