"Perseverate is a word I grew up using because my sister Claire was often said to be "perseverating again." She would get stuck on whether or not the cat was eating enough and if my mother was off somewhere getting sucked up by a tornado.
-- Jeanne Marie Laskas, Growing Girls
We repeat ourselves. The mind perseverates. The road is rutted and grooved, and beside the road are familiar ditches.
-- Eric Maisel, Deep Writing: 7 Principles That Bring Ideas to Life
To ensure the accuracy of their data, the research scientists necessarily perseverate, repeating each experiments many times and comparing the results of the trials.