An example of filth is a room filled with cat feces.
An example of filth is what some people call pornography.
Origin of filth
- Middle English from Old English fȳlth pū̆- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English filth, from Old English fȳlþ (“foulness, filth”), from Proto-Germanic *fūliþō (“foulness, filth”), from Proto-Germanic *fūlaz (“foul, corrupt, dirty, vile”), from Proto-Indo-European *pū- (“rottenness, pus”), equivalent to foul + -th. Cognate with Dutch vuilte (“filth”). More at foul.