echar
throw
etch
to carve or engrave
+
-ar
verb suffix
Echar means to throw. While not related in meaning, it sounds like the English word etch0 (to carve) + -ar1 (verb1). Think of 'throwing' a carving tool to etch something.
verb
  1. throw
    To throw or cast something
    Echó la pelota por encima de la valla. // He threw the ball over the fence.
  2. put
    To put or add something
    Echa sal a la sopa, por favor. // Add salt to the soup, please.