www.alphadictionary.com

Concordia in Latin meant harmony, agreement, union and it is composed of com (together) with cor (heart). When two hearts are together there is harmony.

Anyone know why the SST was named Concorde?

From Wikipedia: Reflecting the treaty between the British and French governments which led to Concorde's construction, the name Concorde is from the French word concorde (IPA: [kɔ̃kɔʁd]), which has an English equivalent, concord. Both words mean agreement, harmony or union. The name was officially changed to Concord by Harold Macmillan in response to a perceived slight by Charles de Gaulle. In 1967, at the French roll-out in Toulouse the British Government Minister for Technology, Tony Benn, announced that he would change the spelling back to Concorde.[26] This created a nationalist uproar that died down when Benn stated that the suffixed 'e' represented "Excellence, England, Europe and Entente (Cordiale)." In his memoirs, he recounts a tale of a letter from an irate Scotsman claiming: "[Y]ou talk about 'E' for England, but part of it is made in Scotland." Given Scotland’s contribution of providing the nose cone for the aircraft, Benn replied, "t was also 'E' for 'Écosse' (the French name for Scotland) — and I might have added 'e' for extravagance and 'e' for escalation as well!"[

This has been around for an awfully long time without graduating. Isn't it about time?