intr.v. per·se·vered, per·se·ver·ing, per·se·veres
To persist in or remain constant to a purpose, idea, or task in the face of obstacles or discouragement.
[Middle English perseveren, from Old French perseverer, from Latin persevērāre, from persevērus, very serious : per-, per- + sevērus, severe; see segh- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.