A pump is a device

Pumps work by using mechanical forces to push the material, either by physically lifting, or by the force of compression.
The earliest type of pump was the Archimedes screw, described by Archimedes in the 3rd century BC, but used earlier by Sennacherib, King of Assyria, in the 7th century BC.[1] In the 13th century AD, al-Jazari described and illustrated different types of pumps, including reciprocating pumps, double acting pumps with suction pipes, water pumps, and pistons.[2][3]