noun: an area of land cleared for farming by slashing and burning the vegetation.
A variant of Northern English dialect swithen (to burn), from Old Norse svithna (to be singed). Earliest documented use: 1868
Usage (from Wordsmith)
“Some headed out to the charred earth of their swidden gardens to tend crops of manioc, bananas, and sweet potatoes.”
Chip Brown; Kayapo Courage; National Geographic (Washington, DC); Jan 2014.