(1):

(v. t.) To overlay or plate with a thin layer of wood or other material for outer finish or decoration; as, to veneer a piece of furniture with mahogany. Used also figuratively.

(2):

(v. t.) A thin leaf or layer of a more valuable or beautiful material for overlaying an inferior one, especially such a thin leaf of wood to be glued to a cheaper wood; hence, external show; gloss; false pretense.