Brachial - brachion, arm.⏎
Aponeurosis - apo, from: neuron, tendon. (Early GREEK anatomists used neuron indiscriminately for nerves and tendons.)⏎
Azygos - azygos, unyoked (not a pair) named for its asymmetry.⏎
Acetabulum - acteum, vinegar + abrum, holder. Small cup for vinegar, hence any small cup.⏎
Biceps - bi, double; caput, head.⏎