mag-
To make salt out of seawater.
Magsila ita agod indi ita ra mamakal ta kasin.
Let's make
sea
salt so that we don't have to buy salt anymore.
Ocean water is directed into a shallow field where it
evaporates in the sun, leaving a salty residue. When dry,
the salt is raked up and put into large sacks. This process
can be seen on Cuyo and Manamok islands.