Never in former days would any high lord of this land have constrained a man to abandon such a quest as mine.
How long, I wonder, has he been constrained to come often to his glass for inspection and instruction, and the Orthanc-stone so bent towards Barad-dur that, if any save a will of adamant now looks into it, it will bear his mind and sight swiftly thither?
There are no more uses of "constrained" in the book.
Show samples from other sources
...it is very grievous to be constrained to keep our hands off such a dainty dish as Narnia.
C.S. Lewis -- The Horse and His Boy
It seemed that we were all cloaked in an unwelcome garment of racial difference that constrained, confined, and restricted us.