the.com/calf

the muscle that quits first when stairs become a personal vendetta.

means The fleshy, muscular back part of the lower leg between the knee and ankle (and, separately, a young cow or other young large animal).

from From Old Norse 'kalfi' for the leg muscle, which English borrowed long ago. Curiously, the leg 'calf' and the baby-cow 'calf' arrived by different roads — the animal sense comes from Old English 'cealf' (related to German 'Kalb'), while the muscle name traces to that separate Norse word. Two unrelated words that drifted into the same spelling, a coincidence that's been confusing dictionaries ever since.

baby twins
both a cow's young and your leg share the name
second heart
calves pump blood back up against gravity
viking roots
name comes from Old Norse for the bulge
charley horse
sudden calf cramps strike most often at night
for instance

cow-calf operation — ranches in texas breed cows and raise calves for beef, selling calves at 6-12 months

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