From cakak; properly, a thicket of men, i.e. A crowd -- multitude.
see HEBREW cakak
H5519. sak
[סַךְ] noun [masculine] throng (properly an interwoven mass); — בַּסָּ֑ךְ אֶעֱבֹר Psalm 42:5 I used to pass along in the throng, so most; but word dubious