Posted by Cathy on 7/21/2023, 4:28 pm, in reply to "Re: Countdown ..."
He's a gamer along with being a teacher in mixed martial arts so it could be anything. They both love and adore Acadia State Park in Bar Harbor, Maine (they go on vacation there every year except this year) so it's possible they've named her after their favorite place, Arcadia. That would also be a riff on "arcade" as in video games.