> as a momento

FWIW I think you’re thinking of “memento”

     an object or item that serves to remind one of a person, past event, etc.; keepsake; souvenir.

Oddly it works as a neologism as well. "moment" conveying that it was short-lived or fleeting.

A memory or artifact of a short period of time.

> Oddly it works as a neologism as well

TIL, thank you :)

Are you mixing it up with xhtml