eternally
adverb /ɪˈtɜːnəli/
  /ɪˈtɜːrnəli/
- in a way that exists or continues forever without an end
- I'll be eternally grateful to you for this.
 - women trying to look eternally young
 
 - (informal) in a way that keeps happening and never seems to stop
- I am eternally amazed at what some people will do for money.