to repeat something insistently or redundantly
"Lula feels any social rejection acutely. She has memorized the birthdays of all of her friends but knows she is only invited to two parties a year. On a recent afternoon, as she arranged and rearranged her Hello Kitty-themed room, she perseverated about not seeing her friends at camp and about not wanting to get older."
- Apoorva Mandavilli, "The Lost Girls", 19 October 2015 spectrumnews.org (https://spectrumnews.org/features/deep-dive/the-lost-girls/)