1
ישגלנה. לְשׁוֹן שֵׁגַל, פִּלֶגֶשׁ, וְהַכָּתוּב כִּנָּהוּ לְשֶׁבַח ישכבנה, וְתִקּוּן סוֹפְרִים הוּא זֶה: ישגלנה is connected in meaning with the noun שגל, a concubine; Scripture, however, paraphrases it by using a more decent, expression, viz., ישכבנה (i.e. the קרי is ישכבנה). This is a variation such as writers make to avoid an indecent expression (Megillah 25b; cf. Rashi on Genesis 18:22 and Note p. 266).
2
תחללנו. בַּשָּׁנָה הָרְבִיעִית לֶאֱכֹל פִּרְיוֹ (מגילה כ"ה): תחללנו THOU SHALT NOT MAKE IT חולין in the fourth year so as to be able to eat its fruits (cf. Rashi on Deuteronomy 20:6).