enduringly

enduring | American Dictionary

enduring
adjective
us/ɪnˈdʊər·ɪŋ/
continuing for a long time; lasting:
He believed in the enduring power of love.

enduring | Business English

enduring
adjective[ before noun ]
uk /ɪnˈdjʊərɪŋ/us
used to describe something that will last for a long time:
enduring popularity/strength/successThis game has an enduring popularity.
enduring problems/difficulties
used to describe something that is good enough to be popular or successful for a long time:
an enduring brand/companyHoover™ is one of the most enduring brands of the twentieth century.