pertinaciously
per·ti·na·ciously
adverb
1.
Origin
From pertinacious + -ly, from Latin pertināx, from per- (“very”) + tenāx (“tenacious”), from teneō (“to hold”).
Related words
Pertaining to
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.