verb (used without object), per·sev·er·at·ed, per·sev·er·at·ing.

to repeat something insistently or redundantly: to perseverate in reminding children of their responsibilities.

Origin of perseverate

First recorded in 1910–15; back formation from perseveration
Related formsper·sev·er·a·tive, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for perseverate

1915, in psychology, a back-formation from perseveration. Related: Perseverating; perseverative.

Online Etymology Dictionary, © 2010 Douglas Harper