water-pot
/ˈwɔːtəpɒt/noun
1A vessel, typically a large earthenware jar, for holding water. In later use sometimes also: a small container of water used to clean watercolours from paintbrushes.
2A portable container used for watering plants; = watering pot. Compare watering can. Also figurative. Now chiefly US.
3The part of the constellation Aquarius which is traditionally depicted as a vase or jar from which water issues.
Origin
Late Middle English; earliest use found in The Wycliffite Bible (early version). From water + pot.