בְּנֵ֣י בִנְיָמִן֮ לְמִשְׁפְּחֹתָם֒ לְבֶ֗לַע מִשְׁפַּ֙חַת֙ הַבַּלְעִ֔י לְאַשְׁבֵּ֕ל מִשְׁפַּ֖חַת הָֽאַשְׁבֵּלִ֑י לַאֲחִירָ֕ם מִשְׁפַּ֖חַת הָאֲחִירָמִֽי׃
Сыновья Вениамина по родам их: Бела, семья Белаитов; Ашбел, семья ашбелитов; Ахирам, семья ахирамитов;
Rashi on Numbers
לאחירם OF AHIRAM — He is identical with Ehi (אחי) who went down to Egypt (Genesis 46:21), and because he was called after Joseph’s name (Sotah 36b), who was his (Benjamin’s) brother (אח) and greater, (רם) than he, he was also called Achiram.
Chizkuni
לבלע, to Bela, etc;” the sons of Bela were divided into three families, one named after its founder, two after Arad and Naamon,