From sha'ar in the original sense of swelling; a kneading-trough (in which the dough rises) -- kneading trough, store.
see HEBREW sha'ar
H4863. mishereth
[מִשְׁאֶ֑רָת] noun feminine a household vessel, AV(Exodus), RV kneading-trough; vessel in which was dough before it was leavened (Exodus 12:34) (hence usually derived from שְׂאֹר leaven (with שׂ — by error? — for שׂ), but this not certain; compare מַשְׂרֵת above); — only suffix מִשְׁאַרְתֶּ֑ךָ Deuteronomy 28:5, 17 (both + טַנְאֲךָ); plural suffix מִשְׁאֲרוֺתֶיךָ, Exodus 7:28 (J; + תַּנּוּרֶיךָ), מִשְׁאֲרֹתָם Exodus 12:34 (E).
מְשֻׁבָה see מְשׁוּבָה. מִשְׁבְּצוֺת see שׁבץ
מַשְׂבֵּר, [מִשְׁבָּר] see שׁבר.
[מִשְׁבָּת] see שׁבת. מִשְׁגֶּה see שׁגה.