blindar
armor
blind
to make unable to see
+
-ar
verb suffix
Blindar means to armor. While it looks like the English word blind0, it actually means to protect or shield, as if making something unable to be seen. The -ar1 ending indicates it's a verb1.
verb
  1. armor
    To armor or protect something with a strong covering
    Necesitamos blindar el vehículo contra ataques. // We need to armor the vehicle against attacks.