The pattern of basic values and attitudes of a people, characteristically transmitted through myths and the arts.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "mythos" in a sentence
"I tend to use the term mythos, but I suppose any religion that falls out of favor could be called that."
"I think it's safe to assume, dealing with the Knights Templar, the Holy Grail will be involved somehow, and while not necessarily SF, the whole Grail/King Arthur/Templar mythos is just too interesting to pass up (see Indiana Jones and the Last Crusade)."
"As much as I liked Alias throughout its run, the mythos is eventually what choked the show to death, I think."