Autumn is the season between summer and winter when the days become cooler and leaves start turning colors (usually red, orange, yellow, brown) and shed from the trees. It comes from Latin autumnus (autumn, fall) which derives from an unknown source though it could possibly be influenced by Latin auctus (enriched, enlarged, ample). Autumn could be related to PIE root word *h₂sews- (dry) as in the drying up season; it could also be borrowed from an Etruscan word.
Origin: Proto-Indo-European, Etruscan
- Autumnus (Latin)