gaunt (adj.)

"lean and haggard," from or as if from hunger, mid-15c. (as a surname from mid-13c.), from Middle French gant, of uncertain origin; perhaps from a Scandinavian source (compare Old Norse gand "a thin stick," also "a tall thin man") and somehow connected with the root of gander. Connection also has been suggested to Old French jaunet "yellowish" [The Middle English Compendium].