estimular
stimulate
stimulate
to encourage or arouse interest or enthusiasm
+
-ar
verb suffix
Estimular means to stimulate and can be thought of as stimulate0 + -ar1 (verb suffix1).
verb
  1. stimulate
    To encourage or motivate someone to do something
    El profesor intenta estimular a sus estudiantes para que lean más. // The teacher tries to encourage his students to read more.