From shamar; something preserved, i.e. The settlings (plural only) of wine -- dregs, (wines on the) lees.
see HEBREW shamar
H8105. shemer
II. [שֶׁ֫מֶר] noun masculineIsaiah 25:6 only plural lees, dregs (figurative); — absolute שְׁמָרִים 25:6 (twice in verse) (in both = wine matured by resting undisturbed on the lees); suffix אֶלשְֿׁמָרָיו הוּא שֹׁקֵט Jeremiah 48:11 (of Moab's undisturbed life), compare (of careless men) שִׁמְרֵיהֶם עַלֿ הַקֹּפְאִים Zephaniah 1:12; שְׁמָרֶיהָ Psalm 75:9 (of ׳יs cup of judgment). 1. שֶׂ֫מֶר
III. שׁמר (√ of following; meaning dubious; Late Hebrew שָׁמִיר diamond, so Aramaic שָׁמִירָא (also flint), ; Arabic = mimosa gummifera, Lane1425b).
שׁמור see 111. שָׁמִיר.