Pluperfect (noun)

The pluperfect tense, a verb form in some languages that expresses completed action in the past, often translated as 'had [done]'.

Origin:

From latin plus quam perfectum, literally meaning 'more than perfect'.

Examples:

1. In French, the pluperfect is formed with the auxiliary verb 'avoir' or 'être' and the past participle.
2. In Spanish, the pluperfect is formed with the auxiliary verb 'haber' and the past participle.
3. The pluperfect is not commonly used in English, but can be found in literary works and in more formal writing.