"Leyan Ardem-Koi" was the Yemai civilization name used by Doctor Leonard McCoy during Starfleet's covert study of the Yemai Empire by the crew of the Federation starship USS Enterprise on planet Sigma Niobe II in the year 2268.
History and specifics[]
The name was a phonetic variation on his Human name. (TOS - Constellations short story: "As Others See Us")