The OED Blog has come out with a web app that finds a word that has a first citation from your birth year.
But I think it can be done better. Can you find a word with a citation from your exact birthday?
Mine is the verb to Micawber, “To adopt the feckless optimism characteristic of Micawber [the Dickens character].”
1963 Punch 24 July 126/1 Every author must spend half his life Micawbering, waiting for something to turn up.
To search, do an advanced search for the day and month, while limiting the results to your birth year.
For those without access to the OED, I’d be happy to look your birthday word.