FeatureParticipationOrdinary causation
SenseBoth sides participateAn agent affects an object
Exampleقَاتَلَ زَيْدٌ عَمْرًاأَخْرَجَ زَيْدٌ عَمْرًا
MeaningMutual combatZayd made ʿAmr go out
In the first example, both sides confront one another; in the second, Zayd causes ʿAmr to go out. Transitivity by itself does not prove reciprocity.