In American and Canadian English, tidbit is the preferred spelling of the noun referring to (1) a choice morsel or (2) a pleasing bit of something. Titbit is preferred everywhere else. Neither spelling is right or wrong. Titbit is older, but tidbit is etymologically justifiable (the first syllable likely comes from the archaic colloquialism tid, meaning tender). And tidbit is not so new itself; it was well established in American English by the early 1800s.





Examples

North America






While researching the Marquis de Sade several years ago, I came across an intriguing biographical tidbit. [New York Times] Any mixed messages to be had from that tattoo-related tidbit are easy to clear up, however. [Vancouver Sun] Press a button, and you’ll unlock a tidbit about a particular town. [Washington Post]

Outside North America