Definitions

1. verb

to remove or take off something that is laid down or spread out

“She had to unlay the wet carpet to dry it properly.”

2. verb

to remove or take off the outer layer of something, especially a roof or a covering

“The workers had to unlay the old tiles to replace them with new ones.”

3. verb

to remove or take off the spines or leaves of something, especially a book or a document

“The librarian had to unlay the old books to repair their spines.”