# lay a finger on

idiom

Source: https://englishreference.com/idiom/lay-a-finger-on
Updated: 2026-08-10

## Meaning

To merely touch.

## Examples

- Don't you dare lay a finger on my cake.
- The angry man warned the thief not to lay a finger on his expensive car.
- The protective mother declared that no one should lay a finger on her child while she was still breathing.

## Origin

From the Middle English phrase *fynger on (hem) to leyn*, recorded as a description of touching another person with hostile intent. The structure persists as a surviving trace of the mediaeval idiom, which specifically denoted the application of physical force or the initiation of an assault.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.