shticky guy; The first set of names (Mentioned in Sefer B’reshis) are not specific Jewish names, and therefore, it’s natural that most of them should not be used. But, the children of the Sh’vatim were named for specific events in their life. Also, most names that were popular in Tanaaic and Amoraic times are not in use today. Maybe that is why they sound strange to us. But, the question remains why they fell out of popularity. Also, the Tana R. Meir could learn the character of a person through his name. As is recounted in the Talmud.
