Depreciate versus Deprecate

I'm reading away and I come across 'deprecate'. I've come across it before and I sort of know what it means, but then I notice that it is spelled exactly like depreciate, except depreciate sticks an i in the middle. So now I wonder just what is the difference between deprecate and deprecate?

Bottom line: to deprecate is “to disapprove,” but in “self-deprecating,” it means, “to belittle.” In the world of computing, deprecated means “phased out” or “soon to be phased out.” Depreciate is for talking about loss of monetary value.