let or hindrance
let or hindranceobstruction or impediment. formal
Let in its Middle English sense of ‘something that impedes’ is now archaic and rarely occurs outside this phrase, in which it duplicates the sense of hindrance . It is, however, used in sports such as badminton and tennis.
1999 Marion Shoard A Right to Roam Citizens can claim routes as new public paths on the grounds that they have been used without let or hindrance for at least twenty years.
See also: let