A cut of beef from the hip bone area of a cow; also called the hip bone or the bone itself from this region.
From 'aitch' (the letter H, pronounced as the name of the letter) + 'bone.' Named for the H-shape of the hip bone when viewed from certain angles.
This is a perfect example of folk etymology—people saw an H-shaped bone and started calling it the 'aitch bone,' and the name stuck so well that butchers still use it today, even though most people forget it's literally named after the letter H.
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