An Etymological Dictionary of the German Language/Fenchel
Fenchel, m. (Suab. and Alem. Fenkel), from the equiv. MidHG. vënchel, vënichel, OHG. fënahhal, fënihhal, m., ‘fennel’; comp. AS. finul, E. fennel; formed from Lat. (fœniculum, feniculum, feniclum), fenuclum; from the same source the Romance cognates Fr. fenouil, Ital. finocchio, ‘fennel,’ are derived.