DOV BAR-LEIB: Bachya says that we should not pronounce שָׁנִים as Shanim but as Shnayim which means "two prophets" describing the word הַנִּבְּאִים in this case meaning Eldad and Meidad (those were not their real names).
Meidad: A nickname for one of two people (either one of the sons of Elitzafan ben Parnach Prince of Zevulan for whom the Land for his tribe was apportioned by Yehoshua bin Nun or Qemuel ben Shiftan, Prince of Ephraim also at the time of Yehoshua’s apportionment. See BaMidbar 34). Meidad means Beloved of Water

