From Latin 'nervus' (sinew, nerve), from PIE *sneh1- — originally any tough fibrous tissue, not just neurological.
A fiber or bundle of fibers that transmits impulses of sensation between the brain or spinal cord and other parts of the body; also courage or audacity.
From Latin 'nervus' (sinew, tendon, nerve, bowstring, string of a musical instrument), from PIE *sneh₁-wr̥ (sinew), related to Greek 'neuron' (sinew, nerve, cord). In ancient medicine, no distinction was drawn between nerves, tendons, and sinews — all were called 'nervus' or 'neuron.' The anatomical distinction emerged only in the Renaissance
Latin 'nervus' meant sinew, tendon, bowstring, and the string of a musical instrument — all before it meant what we now call a nerve. Ancient anatomists did not distinguish between nerves and tendons; they were all 'nervi.' When Galen dissected the vocal cords, he called them 'nervi' too. The modern anatomical sense