Origin: Latin suffix -tion
Malfunction has 4 different meanings across 2 categories:
a failure to function normally
"The car's engine suddenly malfunctioned and wouldn't start in the middle of the highway."
faulty functioning
"The car's engine began to malfunction during our road trip, leaving us stranded on the highway."
to function improperly
"The elevator malfunctioned and wouldn't move past the second floor."