There's a word for the following expression:
To confuse people by using Scientific/ Technical/ obscure words (may be in an attempt to prove something or convince them of something.)
This word was on my vocabulary a long time ago. I haven't been able to remember it for a while now. I am pretty sure it's a single word.
For some reason if you think this might be a phrasal verb please feel free to include them in your suggestions.
P.S. Words like bombastic, pompous, grandiloquent etc are not the one's I'm looking for and clearly these doesn't properly match the meaning. Other than these, if you can stretch the definition a tad bit and point a word, it's fine.