lay a finger on

Значение (Английский)

1. (colloquial, idiomatic) To merely touch.
2. Used other than figuratively or idiomatically: see lay, a, finger, on: to finger

Синонимы

set on

Этимология (Английский)

Унаследовано от среднеанглийский:

In summary

From Middle English fynger on (hem) to leyn (“touch (someone) with hostile intent”).