* Actually, "Lost" had not yet premiered in classical Rome. I throw that in there just to make it understandable for the modern audience. In truth, a Roman was more likely to be watching "Three's Company."
NB: The real etymology, according to the Online Etymology Dictionary:
- early 15c., "of the trivium," from M.L. trivialis, from trivium "first three of the seven liberal arts," from L., lit. "place where three roads meet," from tri- "three" + via "road." The basic notion is of "that which may be found anywhere, commonplace, vulgar." The meaning "ordinary" (1580s) and "insignificant" (1590s) were in L. trivialis "commonplace, vulgar," originally "of or belonging to the crossroads."