concursar
compete
concourse
a gathering of people
+
-ar
verb suffix
Concursar means to compete and can be thought of as concourse0 (a gathering of people0) + -ar1 (verb1), implying people coming together to compete.
verb
- competeTo participate in a contest or competitionVoy a concursar en el programa de televisión. // I'm going to compete in the television show.