Immemorial

• (a.) Extending beyond the reach of memory, record, or tradition; indefinitely ancient; as, existing from time immemorial.
Found on http://thinkexist.com/dictionary/meaning/immemorial/

Immemorial

Im`me·mo'ri·al adjective [ Prefix im- not + memorial : confer French immémorial .] Extending beyond the reach of memory, record, or tradition; indefinitely ancient; as, existing from time immemorial . ' Immemorial elms.' Tennyson. ' Immemorial usage ...
Found on http://www.encyclo.co.uk/webster/I/13
No exact match found