jargonise
/dʒɑːrˈɡɒnaɪz/Definitions
1. verb
to use or speak jargon; to make something obscure or difficult to understand by using technical or pretentious language
“The professor jargonised the simple concept, leaving the students confused.”
2. noun
the act of using or speaking jargon
“The jargonisation of the technical manual made it inaccessible to non-experts.”