Meaning of "thousand-fold" in this sentence

Solution 1:

I protest, added my uncle Toby, looking up as he protested it, towards the top of the ceiling, that was I her brother, Trim, a thousand-fold, she could not make more constant or more tender inquiries after my sufferings, though now no more.

Source

If I were her brother a thousand times over she could not be as tender as she has been.