expertivity 

Synonym of expertise.

Drummond asked Brady questions regarding his expertivity on Holy Scripture.

expertivity by JDatx512 August 19, 2008

experticity 

A word used by non-experts to make themselves sound like an expert. Has more syllables than the word expertise, thus the speaker attempts to sound more intelligent, but usually fails.

Eddie: "Are you finished yet dude? I have important things to do like watch mold grow."
Brandon: "I am trying to share my experticity with you, now that you are a single guy"
Eddie: "I don't get paid enough to have to hear this, go down the hall and share it with Ray."

experticity by dave_the_thinker December 28, 2017

expensivity

The gravity of how expensive something is

The expensivity of the weapons in zombie lane, is much too high.

expensivity by BusterDivision May 13, 2011