# underlie

> English word · Verb · IPA /ˌʌn.dəˈlaɪ/ · frequency rank #42,970

## Definitions
1. To lie in a position directly beneath something.
2. To lie under or beneath.
3. To serve as a basis of; form the foundation of.
4. To be subject to; be liable to answer, as a charge or challenge.
5. To underlay.

## Etymology
From Middle English underlien, underliggen, from Old English underliċġan (“to underlie, to be subject to, give way to”), equivalent to under- + lie. Cognate with Dutch onderliggen (“to lie below, lie on the bottom of”), German unterliegen (“to lie under, be subject to, succumb”).

## Easily confused with
- **underpin** (https://plainspell.com/en/vs/underlie-vs-underpin)
- **undermine** (https://plainspell.com/en/vs/underlie-vs-undermine)
- **underside** (https://plainspell.com/en/vs/underlie-vs-underside)
- **underline** (https://plainspell.com/en/vs/underlie-vs-underline)
- **underlined** (https://plainspell.com/en/vs/underlie-vs-underlined)
- **underage** (https://plainspell.com/en/vs/underage-vs-underlie)

## Common misspellings (11)
`nuderlie`, `udnerlie`, `undderlie`, `undelrie`, `underile`, `underlei`, `underllie`, `underrlie`, `undrelie`, `unedrlie`, `unnderlie`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/underlie