I was reading Meaning of “ask of” when I lighted upon this issue:
This meaning of ask (definition 7) is mentioned in the OALD:
7. ask something of somebody = [transitive] to expect or demand something ...
Question 1. I ask not about the definition which I tolerate, but about how to decompose/derive/parse it?
How does the juxtaposition of ask and of effect/imply/induce definition 7?
Update 2014 Jan 17: I wrongly guessed ODO's Definition 3 as the definition of of here. Proof removed.