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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
underly
Grammar usage guide and real-world examplesUSAGE SUMMARY
No, the word "underly" is not a word used in written English.
However, the word "underlie" is an acceptable word that can be used in written English. Example sentence: The underlying theme in the story is that forgiveness is necessary for true happiness.
⚠ May contain grammatical issues
News & Media
Science
Alternative expressions(7)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
11 human-written examples
I can only guess at what yearnings underly this weird historical revisionism, but I find myself drawn to it.
News & Media
as someone on the new york pr team i spend 99% of my thought and energy thinking about how to move people past thinking that the only means of progress is for things to harden into a constrained list of meetable demands, for a leader to emerge and for a platform to be established that isolates everything that doesnt underly it.
News & Media
So the procedure is bad and the theory and effects that underly the awards even worse.
News & Media
Now they were inspired to demob B and S into some capacity in which a difference of rank or status would still underly their uneasy companionship.
News & Media
The elan of the schemes, built or not, was remarkable but many felt queasy at the scale of lending which inevitably had to underly such vaulting notions.
News & Media
No strict regimes – punishment and making a child feel like a bad person crushes the imagination and self-motivation that underly emotionally healthy achievement.
News & Media
Re "Researchers Say Gene Is Linked to Language" (front page, Oct. 4): The gene that may underly speech and language, as described in the journal Nature, affects the development of the basal ganglia, the brain structures involved in Parkinson's disease.
News & Media
No trait is innate in itself, but "certain parts of the information which underly the adaptedness of the whole, and which can be ascertained by the deprivation experiment, are indeed innate" (Lorenz 1965, 40).
Science
Because these principles also underly Russian recursive analysis and the constructive analysis of E. Bishop and his followers, intuitionistic logic may be considered the logical basis of constructive mathematics.
Science
That consensus is now vanished: see Izard 1991, especially Chapter 4, for a division with two basic positive emotions, joy and interest, following Tomkins 1962; neuroscience that may underly such a distinction is discussed in §3.3 below.
Science
We could then classify the random sequences as those that are random with respect to some proper measure (where the propriety of measure is justified in some way from the idea that genuine chances that underly some particular sequences should be proper in the sense just introduced).
Science
Expert writing Tips
Best practice
Always use the correct spelling "underlie" instead of "underly" to ensure clarity and credibility in your writing.
Common error
Avoid using "underly" in your writing. This is a misspelling of the verb "underlie", which is the correct term to use when discussing the basis or foundation of something.
Source & Trust
90%
Authority and reliability
3.2/5
Expert rating
Real-world application tested
Linguistic Context
The word "underly" is primarily intended as a verb, though it's a misspelling of the correct term ""underlie"". Ludwig AI points out that ""underlie"" indicates something forms the foundation or cause of something else.
Frequent in
News & Media
45%
Science
45%
Formal & Business
5%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the word "underly" appears in various contexts, it is generally considered a misspelling of ""underlie"". Ludwig AI indicates that the correct term ""underlie"" should be used to indicate the basis or foundation of something. The sources, mainly from News & Media and Science, suggest attempts to convey underlying principles, but the incorrect spelling undermines the message's credibility. Always use ""underlie"" to ensure your writing is grammatically correct and clear. Remember to also use alternatives such as "be the basis of" or "form the foundation of" for variety.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
underlie
Corrected spelling and the standard verb form indicating a foundation or cause.
be the basis of
Emphasizes the foundational aspect of something.
form the foundation of
Highlights the role as a structural support or core principle.
be at the root of
Indicates a causal relationship, suggesting a deeper, less obvious origin.
be the cause of
Directly states a cause-and-effect relationship.
be responsible for
Similar to 'be the cause of' but implies accountability.
account for
Explains how something occurs or is the reason for something else.
explain
Focuses on providing a reason or clarification.
motivate
Highlights the reason behind an action or decision.
drive
Suggests a strong, compelling force behind something.
FAQs
What is the correct spelling, "underly" or "underlie"?
"Underly" is a misspelling. The correct spelling is ""underlie"", which means to lie or be situated under, or to be the basis or cause of something.
How do I use "underlie" in a sentence?
What are some synonyms for "underlie"?
Alternatives to ""underlie"" include "be the basis of", "form the foundation of", and "be at the root of".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
90%
Authority and reliability
3.2/5
Expert rating
Real-world application tested