The Greek word for the large jar in the original Pandora myth is pithos.
A pithos was a large storage container used in the ancient Greek world, commonly for commodities such as grain, oil, or wine. Hesiod's version of the story uses this kind of vessel rather than a small hinged box. The English expression Pandora's box became established later, even though it does not describe the object in the earliest account.
The translation change matters because it affects how people visualize the myth. A pithos could be a substantial household or storage jar, making the scene different from the compact box shown in many modern illustrations. Renaissance-era interpretation helped shift the image toward a box, and that form became dominant in European languages.
Amphora, krater, and kylix are also Greek vessel terms, but they refer to different pottery forms. An amphora generally has two handles, a krater was used for mixing wine and water, and a kylix was a drinking cup.