Is this Cambridge Dictionary example of "felicitate" valid? [closed]

Solution 1:

No: in the example, there is a typo; it should really be facilitate. So Cambridge just searches a couple of corpora and displays arbitrary instances of the word in question, without checking them at all. (The Oxford English Dictionary has real examples of its entries, which are actually checked.)

Solution 2:

No. Modern developments praising the growth of corpus analysis doesn't make sense. One felicitates someone, not something. This is probably a typo of facilitate:

to make something possible or easier:

In this case, collecting language data in better ways would indeed make (the growth of) corpus analysis more feasible.

The feature you are using collects examples of actual usage from elsewhere, but either human or algorithmic error creeps in from time to time. I suggest flagging it with the comment function next to the entry and moving on.