deadname
/ˈdɛd.neɪm/
Etymology
From dead + name, because the old name is dead (“no longer used”). Attested since at least 2010 as a noun and 2013 as a verb by the OED.
noun
- A previous name of a person (especially a transgender person) who has since changed their name.“And when people constantly refer to you as your deadname [a name that you previously went by], or use the incorrect pronouns, it really is like getting slapped with a wet fish.”
verb
- To refer to someone (especially a transgender person) who has changed names by a previous name.“Using trans peoples' dead names – names that they were born with which are either wrong through either legal or preferential means – has been and always will be an act of aggression, not just to the person you're deadnaming but to all trans people.”