וְהִשְׁבַּתִּי֙ כָּל־מְשׂוֹשָׂ֔הּ חַגָּ֖הּ חָדְשָׁ֣הּ וְשַׁבַּתָּ֑הּ וְכֹ֖ל מוֹעֲדָֽהּ׃
און איך װעל מאַכן אױפֿהערן איר גאַנצע פֿרײד; איר יָום-טובֿ, איר רֹאש-חוֹדש, און איר שבת, און אַלע אירע פֿײַערטעג.
Rashi
Your kerchief. An expression denoting an object which confines the hair so that it does not show, and this refers to a kerchief and ribbons. It is impossible to interpret ‘צַמָּתֵךְ’ [meaning] a veil צֹמֶת, where the tav is a radical, for if so, it should have been punctuated with a dagesh when immediately preceding a hey, which makes it in the feminine possessive, or a vav, which makes it in the masculine possessive, like the tav of ‘שַׁבָּת [Shabbos]’, which, when used in the feminine possessive form, is punctuated with a dagesh, as in, “her festival, her new moon, and her Shabbos וְשַׁבַּתָּהּ,”10Hosheia 2:13. 11Bamidbar 28:10. and similarly in the masculine form, “the burnt offering of each Shabbos in its Shabbos בְּשַׁבַּתּוֹ.”12Vayikra 13:41. But the tav of ‘צַמָּתֵךְ’, is not punctuated with a dagesh, we must perforce conclude that it comes instead of a hey, and the noun denoting kerchief is צַמָּה, and when it is possessive, to render it either in the masculine or in the feminine form the hey is converted to a tav without a dagesh, e.g., שִׁפְחָה [handmaiden] is converted in order to say שִׁפְחָתוֹ [his handmaiden] or שִׁפְחָתָהּ [her handmaiden]. And similarly אָמָה [maidservant] becomes אֲמָתוֹ [his maidservant] or אֲמָתָהּ [her maidservant]. [And similarly,] עֶרְוָה [nakedness] becomes עֶרְוָתוֹ [his nakedness] or עֶרְוָתָהּ [her nakedness]. And similarly in this case, צַמָּה [kerchief] becomes צַמָּתוֹ [his kerchief], צַמָּתָהּ [her kerchief], or צַמָּתִי [my kerchief], צַמָּתֵךְ [your kerchief].