alejar
to move away
a-
to (verb prefix)
+
lejos
far
+
-ar
verb suffix
Alejar means to move away and can be broken down into a-0 (to0) + lejos1 (far1) + -ar2 (verb suffix2), literally meaning 'to make far'.
verb
  1. to move away
    To move or take something or someone away
    Debes alejar a los niños del peligro. // You must move the children away from danger.