There are plenty of Greek words for pouring, wetting and sprinkling.
Baptism is a word that gets a workout in the religious world today.
Babies are touched on the forehead with water and it is called baptism. Other folks have water poured over their heads and it is called baptism, also. People try to 'get' the baptism of the Holy Spirit. Baptism needs to be studied. Note that John's baptism was for a reason.