Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
The core form of a word is the underlying structure that remains constant despite changes in spelling or pronunciation, which is a fundamental aspect of language, building on the concept of core.
External reference — all senses of the word “root linguistics” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.