archival
/ˌɑɹˈkaɪv(ə)l/ noun C2- The practice of storing items in an archive; archiving; (countable) an instance of this. · Our nightly computer backups include the archival of old e-mail messages.
Plural archivals
From the library
He carefully placed the precious journal into a protective archival sleeve, ensuring her inspirational legacy would be permanently preserved for future generations.
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