Analysis of information sources in references of the Wikipedia article "Palate" in English language version.
palate – late 14c., 'roof of the mouth,' from O.Fr. palat, from L. palatum 'roof of the mouth,' perhaps of Etruscan origin. Popularly considered the seat of taste, hence transferred meaning 'sense of taste' (1520s).
palatine (adj.) – mid-15c., from M.Fr. palatin (15c.), from M.L. palatinus 'of the palace' (of the Caesars), from L. palatium (see palace). Used in English to mean 'quasi-royal authority.' Reference to the Rhineland state is from c.1580.