Why are horses called gee-gees?

The term "gee-gee" as a nickname for horses is believed to have originated from the French Word "gégé," which is a colloquial term for a horse. It may also stem from the sound "gee" used in commands to direct horses. The playful repetition in "gee-gee" adds a whimsical touch, making it a popular term, especially among children. Over time, it has become a common affectionate name for horses in English-speaking countries.