The origin of “fall” as a name for a season isn't perfectly clear, though it’s thought that it probably came from the idea of leaves falling from trees (particularly the contraction of the English saying “fall of the leaf"). It first popped up as a name for a season in late-16th century England and became particularly popular during the 17th century, at which point it made its way over to North America. “Autumn,” meanwhile, came to English via the Old French autompne, from the Latin autumnus. From here, things get murky, but it’s thought autumnus probably came from an Etruscan word and is possibly related to the Latin augere, meaning “to increase.”
Calling the season autumn first occurred in English in the 12th century, though was a rarity until around the 14th century. It then began to pick up steam and became common in the 16th century—about the same time “fall” popped up as the name for the season. Before the season was autumn or fall in English, though, it was called “harvest.”
Autumn in South Africa
Autumn in South Africa is from mid-February to April. It offers the best weather in some respects. Very little rain falls over the whole country, and it is warm but not too hot, getting colder as the season progresses.
In Cape Town, autumn is fantastic, with hot sunny days and warm, balmy nights which many people spend outdoors.