[zel-uhs] adjective, Origin: Greek zelos, Filled with passionate intensity for beliefs or goals pursuing what matters with unwavering commitment.

[zel-uhs] adjective, Origin: Greek zelos, So intense about shit that people think you're crazy but you don't give a damn.

[zel-uhs] adjective, Origin: When Passionate got really intense about stuff, So enthusiastic about things that normal people think you need to chill out already.