According to a Washington Post crossword, it's an olla.
four letter word for earthenware pot is "olla"
The word you are seeking is 'Olla'.
The word could be ewer.
Olla
olla
stoneware, pottery Stoneware and pottery are general categories, while an olla is specifically an earthenware crock
olla
A small earthenware pot is a pipkin
An olla is a ceramic pot. It is used to cook soups and stews.
Plant
crock
a crock is: 1) an earthenware pot or pitcher. 2) a person crippled by ill- health.
Crock
anteing
potty
Pot.
Pongal is the name of the celebration and a food... Pongal-sweet rice cooked in an earthenware pot