You are right about the usage of the word crypto. It has some negative associations. E-anything though is very 1990s.  You should also remember that E-cash and E-gold were digital cash products that actually existed and then went bankrupt.  In the case of E-gold there were a lot of fraud and money laundering allegations around it.

Ultimately this is why dogecoin uses the following branding and recommends people do not use the term crypto-currency when talking to new users.