cicatrix

A scar can outlive the injury by decades, and Latin had a neat little word for that stubborn remnant: cicatrix. English first borrowed it in the 1400s as cicatrice, then later reshaped it into the more bookish cicatrix, the sort of term a surgeon or poet might drop when plain old scar feels too ordinary. The root itself is a bit of a mystery — Latin gave us the word, but not a tidy family tree — which is almost fitting for something that names the leftover trace of a wound. It also sits beside its relatives cicatrize and cicatricial, all circling the same medical idea of tissue knitting itself back together. And if you want a vivid contrast, compare it with scar, which came in by a completely different route from Old French and Old Norse: two unrelated words, same grim little souvenir of injury.