perseverabiliter
[LL perseverabilis+-ter]
, enduringly, in a lasting manner.†680 (12c) sicut et obnixe petisti hanc confirmationem ~iter cum coepiscopis ‥ subscribiCS48.
, Perseveranter, in Charta Pippini II. reg. Aquit. ann. 847. tom. 8. Collect.
Histor. Franc. pag. 361.