וַיֹּ֙אמֶר֙ יִשְׂרָאֵ֔ל רַ֛ב עוֹד־יוֹסֵ֥ף בְּנִ֖י חָ֑י אֵֽלְכָ֥ה וְאֶרְאֶ֖נּוּ בְּטֶ֥רֶם אָמֽוּת׃
און ישׂראל האָט געזאָגט: גענוג! מײַן זון יוֹסף לעבט נאָך; איך װעל גײן און װעל אים זען אײדער איך שטאַרב.
Rashi
רב ENOUGH or MUCH — Much joy and pleasure is still in store for me, since my son Joseph is yet alive.
Rashbam
רב; my heart has stood still long enough during all the years I did not think that Joseph was still alive now I am definitely convinced