Formed like mar'ashah; properly, a headpiece, i.e. (plural for adverbial) at (or as) the head-rest (or pillow) -- bolster, head, pillow. Compare marglah.
see HEBREW mar'ashah
see HEBREW marglah
H4763. meraashoth
רַאֲשׁוֺת 1 Samuel 26:12 see מְרַאֲשׁוֺת below