An Etymological Dictionary of Astronomy and Astrophysics

The Swan. A prominent northern → constellation that lies in the glowing band of the Milky way, east of Lyra and north of Vulpecula, and represents a swan.
The brightest stars of Cygnus form a cross, so it is also known as the Northern Cross. Abbreviation: Cyg, genitive: Cygni.

Etymology (EN): From L. cygnus “swan,” from Gk. kuknos.

Etymology (PE): Mâkiyân “a hen, fowl.”