1660s, "good-tasting, agreeable to the taste," from palate + -able. Figurative sense of "agreeable to the mind or feelings" is from 1680s. Related: Palatably; palatability.
palatable food
a palatable solution to the problem
palace
paladin
palaeo-
palaestra
palanquin
palatable
palatal
palatalization
palate
palatial
palatinate