truf·fle 
(trŭfəl)
(trŭfəl)n.
1. Any of various edible, fleshy, irregularly rounded ascomycetous fungi, chiefly of the genus Tuber, that grow underground on or near the roots of trees and are valued as a delicacy.
2. Any of various round candies made of chocolate, butter or cream, sugar, and various flavorings, often coated with cocoa powder.
[Alteration of French trufe, from Old French, from Old Provençal trufa, from Vulgar Latin *tūfera, truffles, from dialectal variant of Latin tūber, lump; see teuə- in the Appendix of Indo-European roots.]
truffled adj.