2:3ב׳:ג׳
1 א

ולא יכלה עוד הצפינו. שֶׁמָּנוּ לָהּ הַמִּצְרִיִּים מִיּוֹם שֶׁהֶחֱזִירָהּ, וְהִיא יְלָדַתּוּ לְשִׁשָּׁה חֳדָשִׁים וְיוֹם אֶחָד (שם), שֶׁהַיּוֹלֶדֶת לְשִׁבְעָה יוֹלֶדֶת לִמְקֻטָּעִין (נדה ל"ח), וְהֵם בָּדְקוּ אַחֲרֶיהָ לְסוֹף תִּשְׁעָה:

ולא יכלה עוד הצפינו AND SHE COULD NO LONGER CONCEAL HIM, because the Egyptians calculated the period from when he (Amram) took her back. She, however, bore him after a term of six months and one day — for a woman who gives birth to a child in the seventh month may do so in incomplete months (i. e. the seventh month of pregnancy may not be completed) (Niddah 38b) — and they (the Egyptians) made enquiry regarding her at the end of nine months (the normal term of pregnancy, but in this case three months after the child’s birth; therefore “she could no longer conceal him”).

2 ב

גמא. גְּמִי בִּלְשׁוֹן מִשְׁנָה (שבת ע"ח), וּבְלַעַז יונק"ו, וְדָבָר רַךְ הוּא וְעוֹמֵד בִּפְנֵי רַךְ וּבִפְנֵי קָשֶׁה (סוטה י"ב):

גמא PAPER-REED — In the language of the Mishna it is called גמי (Shabbat 78a), and in old French junc. It is a flexible substance that offers resistance to the pressure of both soft and hard things (Sotah 12a).

3 ג

בחמר ובזפת. זֶפֶת מִבַּחוּץ וְטִיט מִבִּפְנִים, כְּדֵי שֶׁלֹּא יָרִיחַ אוֹתוֹ צַדִּיק רֵיחַ רַע שֶׁל זֶפֶת (שם):

בחמר ובזפת — with pitch (זפת) outside, but with slime (חמר) inside, in order that that righteous child might not smell the disagreeable odour of the pitch (Sotah 12a).

4 ד

ותשם בסוף. הוּא לְשׁוֹן אֲגַם, רושיי"ל בְּלַעַז, וְדוֹמֶה לוֹ "קָנֶה וָסוּף קָמֵלוּ" (ישעיהו י"ט):

ותשם בסוף AND SHE PUT IT IN THE FLAGS — It (סוף) has the same meaning as אגם. old French rosel. Another example of the word is (Isaiah 19:6) “And reeds and flags (סוף) shall wither”.