Ampliative (from Latin ampliare, "to enlarge"), a term used mainly in logic, meaning "extending" or "adding to that which is already known".^[1]

This terminology was often used by medieval logicians in the analyses of the temporal content of their subject terms.^[2] There were three rules outlined in its usage:

1. Common terms in a sentence only represent present things when they stand with a non-ampliating verb about the present;
2. A common term standing in a sentence with a verb about the past is able to stand for present and past things; and,
3. The common term standing with a verb about the future can indifferently stand for present and future things.^[2]

There are Roman texts that refer to it as ampliatio.^[3]

In Norman law, an ampliation was a postponement of a sentence in order to obtain further evidence.^[1]

Look up ampliative in Wiktionary, the free dictionary.

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