Genesis 41:51 New English Translation

⁵¹Joseph named the firstborn Manasseh,^[a] saying,^[b] “Certainly^[c] God has made me forget all my trouble and all my father’s house.”

Genesis 41:51 sn The name Manasseh (מְנַשֶּׁה, m^enasheh) describes God’s activity on behalf of Joseph, explaining in general the significance of his change of fortune. The name is a Piel participle, suggesting the meaning “he who brings about forgetfulness.” The Hebrew verb נַשַּׁנִי (nashani) may have been used instead of the normal נִשַּׁנִי (nishani) to provide a closer sound play with the name. The giving of this Hebrew name to his son shows that Joseph retained his heritage and faith; and it shows that a brighter future was in store for him.
Genesis 41:51 tn The word “saying” has been supplied in the translation for stylistic reasons.
Genesis 41:51 tn Or “for.”

New English Translation (NET)