Reason for a fortuitous event 128527; . It must be a mixture between causal ("origin of an effect or an event") and causal ("eventual, random") ), which if not in jest, is an error (perhaps by flow or flow or . . . ), because as a neologism it makes no sense.
Effect or cause, k happens for some reason or reason, to which we do not know the why, , , , , but it happens for something, k is not casual , , , , , , action reaction , effect cause , , ,