הַקֹּדְרִ֥ים מִנִּי־קָ֑רַח עָ֝לֵ֗ימוֹ יִתְעַלֶּם־שָֽׁלֶג׃
Which are black by reason of the ice, And wherein the snow hideth itself;
Rashi on Job
which wrinkle from the ice if ice comes upon them, they wrinkle and become like boards (Shem Ephraim),
Rashi on Job
and upon them the snow disappears—it is covered, for it falls with the ice. This is one betrayal, for it [the stream] is hidden from the eye, and a thirsty man does not find water to drink.