Do you mean 'earthen'? Earthen is an adjective (a word used to describe a noun), not a noun (a naming word), so you can't say 'an earthen', you have to say 'an earthen something or other'. Earthen means that it is made out earth, in other words, that it is made from clay.

Bare earthen ware pots that are wetted down keep their contents cool as the water evaporates from its surface. This form of evaporative cooling has been around for thousands of years and is one of the first non-biological ways humans harnessed solar energy to do work.

The dance form that is linked with the earthen lamp is the Garba Raas. This is an Indian dance. The name 'Garba' is a derivative of 'Garbhadip' or 'lamp inside an earthen pot.'

Depends whether the earthen pot is baked or not, if it is, it's safe to keep it.

1. (of a floor or structure) Made of compressed earth: "an earthen dam".
2. (of a pot) Made of baked or fired clay.