asar
roast
asado
roasted
+
-ar
verb suffix
Asar means to roast and can be thought of as the verb form of asado0 (roasted0) with the -ar1 verb suffix1.
verb
  1. roast
    To roast or grill food
    Voy a asar el pollo en el horno. // I'm going to roast the chicken in the oven.