the throat to attract attention is called a hem, giving the interjection ahem (compare the French hein). In As You Like It (act 1, scene 3) Rosalind says that there are burs in her heart. “Hem them away,” says Celia.
Prompted by the unusual pronunciation of cough, George Bernard Shaw suggested that ghoti spelt fish—“gh” as in cough, “o” as in women, and “ti” as in nation. But, of course, ough is not always pronounced off, as the table shows.
An American friend has told me that there is a US town called Gough, pronounced “gaff,” but I suspect that this is just “goff” spoken with a strong American accent.
Notice that slough and shough can each be pronounced in three different ways. And the correct way to pronounce the title of this piece is “Oh oh.”
Enough.