From Longman Dictionary of Contemporary Englishpluperfectplu‧per‧fect /pluːˈpɜːfɪkt $ -ɜːr-/ noun → the pluperfect
Examples from the Corpus
pluperfect• Maude, on the other hand, had gone deep into the pluperfect, eleven generations of it.• And the past past. the pluperfect, can not have existed for him at all.Origin pluperfect (1400-1500) Late Latin plusquamperfectus “more than perfect” 