Dejai is of African origin, specifically from Nigeria, and means "God has heard." It is a unisex name but is more commonly used for males.
The name Dejai was quite popular between 1993 and 2008, with a notable peak in 1996 when it was given to 16 newborns. However, its popularity seemed to wane thereafter, as the number of births decreased each year until 2004, where it stabilized at around five or six per year until 2008. Overall, there were a total of 75 babies named Dejai born during this period.