Now that just sounds odd

English is an odd, hybrid language; think of it as the mutt of the Germanic root languages. We categorise it as a Germanic tongue but it also has tons of influence from Romance languages such as Latin and French as well as Greek. This all might explain why the language is so difficult to master; just because you can speak it coherently doesn't mean that all of the nuiances of the language have been learned. I'm not claiming to have done this by any leap of the imagination. But anyway . . . This mutt-like aspect of the language might also explain why we have some very odd words. I've got a few, in particular, that are monosyllabic and sound rather odd when said alone and/or many times in succession.
Take for instance these two: then, than
Yes, o.k. so they seem normal enough now. Try saying them by themselves several times over. It starts sounding odd . . .
Here's another: got
That word, when said alone and many times over starts to sound quite disgusting. Imagine something sort of like a mix between a clot and a glop.

If you skim through the dictionary you'll run across polysyllabic words that are rather funky in their own right. Here's one a friend of mine found:

defenestration: the act of placing or throwing, in a forceful manner, something through or out a window

That's one of those "can you believe there's a word for that" kind of things. The word doesn't work very well as a threat either: "Shut up or I'll defenestrate you!"
Hmm . . . odd sounding as well . . . sort of like a mix between defecate and castrate . . . oh, don't worry I won't go into any detail about that one.