Largely means mostly or mainly, describing what is true in most cases or to a great extent.
Formed from *large* plus the adverbial suffix *-ly*. Earlier senses also included “generously” or “on a grand scale,” echoing its root meaning.
When we say something is *largely true*, we’re using a size word to talk about how much of an idea is covered. It’s a neat example of how English uses physical size to measure abstract things like truth and responsibility.
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