to be publicly disgraced: to be shamed, confounded, or left exposed when hope or help fails
This verb describes being brought low in the open: shamed, disgraced, left standing exposed after hope or help has collapsed. It is not mainly the private feeling of guilt that "shame" suggests in English, but the objective condition of a person who has been defeated, disappointed, or unmasked, so that others witness the downfall.
It travels almost as a shadow of the ordinary word for shame, בּוֹשׁ, and is repeatedly paired with it ("ashamed and confounded") to drive the point home, especially in the Psalms, where the worshiper prays that enemies will come to disgrace. It also stands beside כָּלַם, the word for being humiliated or insulted.
A single step from that core gives a second use: to behave so as to bring disgrace, said of the wicked man or the ruinous child whose conduct shames the family. Poets stretch the word further still, picturing nature itself as abashed: the moon and Lebanon lose their glory like the face of a beaten foe.