A primitive root; properly, to tie, specifically, with fetters; but used only as denominative from ekec; to put on anklets -- make a tinkling ornament.
see HEBREW ekec
H5913. akas
[עָכַס] verb denominative Pi`el shake bangles, rattle, tinkle; — Imperfect3feminine plural וּבְרַגְלֵיהֶם תְּעַכַּסְנָה Isaiah 3:16 and with their feet they rattle their bangles.