WordNet sense 1 (a state of nervous depression):

blue funk

WordNet sense 2 (United States biochemist (born in Poland) who showed that several diseases were caused by dietary deficiencies and who coined the term `vitamin' for the chemicals involved (1884-1967)):

Casimir Funk

WordNet sense 3 (draw back, as with fear or pain):

cringe, flinch, quail, recoil, shrink, wince, squinch, recoil