Joseph Wright, The English Dialect Dictionary: Being the Complete Vocabulary of All Dialect Words Still in Use, Or Known to Have Been in Use During the Last Two Hundred Years; Founded on the Publications of the English Dialect Society and on a Large Amount of Material Never Before Printed, Oxford University Press (1970), page 398:
Brivet, a word often applied to children when they wander about aimlessly and turn over things.
Notes and Queries, Oxford University Press (1899), page 329:
“Briveting.”—A friend of mine, a native of Oxford, in the course of conversation remarked, in reference to something for which he had been searching, that he had been “briveting” about London. Never having heard of the term before, and not […]
Collections historical & archaeological relating to Montgomeryshire,, the Powys-land Club (1874), page 122:
Brivit, to ferret after or search for a thing. A person told me that a certain discovery was made whilst a drawer was being brivited; ie, whilst its contents were being thoroughly inspected.