What is "ampliative"

Ampliative \Am"pli*a*tive\, a. (Logic) Enlarging a conception by adding to that which is already known or received.

``All bodies possess power of attraction'' is an ampliative judgment; because we can think of bodies without thinking of attraction as one of their immediate primary attributes.
--Abp. W. Thomson.

a. That broadens conceptual knowledge by adding new information.

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

In Norman law, an "ampliation" was a postponement of a sentence in order to obtain further evidence.