The Collaborative International Dictionary of English v.0.48:

Folklore \Folk"lore`\, n., or Folk lore \Folk" lore`\ .
   Tales, legends, or superstitions long current among the
   people; the unwritten literature of a culture, such as
   stories, proverbs, riddles and songs. --Trench.
   [1913 Webster + WordNet 1.5]

WordNet (r) 3.0 (2006):

folklore
    n 1: the unwritten lore (stories and proverbs and riddles and
         songs) of a culture

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "folklore":
   Mishnah, Spiritus Mundi, Sunna, Talmud, ancient wisdom,
   archetypal myth, archetypal pattern, charm, common law, custom,
   fairy lore, fairyism, folk motif, folktale, immemorial usage,
   legend, lore, myth, mythical lore, mythicism, mythology, mythos,
   popular belief, racial memory, spell, superstition,
   superstitiousness, tradition, traditionalism, traditionality