A veteran is, at root, someone who has accumulated years. The Latin adjective vetus meant 'old', and veteranus was the specific term for a Roman legionary who had served his full twenty to twenty-five years and earned honourable discharge. These men received land grants, citizenship rights, and tax exemptions — veteran status was a legal category with real economic weight, not merely a title of respect. French borrowed the word as vétéran, and English took it up in the early sixteenth century, initially for military service. By the 1600s, the meaning had broadened to cover anyone with long experience in any field: a veteran politician, a veteran sailor. The Proto-Indo-European root *wet- meant 'year', making the word's buried logic transparent: a veteran is one who has put in the years. The same root gave Latin veterinarius — originally pertaining to ageing draught animals — which is why 'veteran' and 'veterinary' are etymological siblings.