To add ornamental or fictitious details to: a fanciful account that embellishes the true story.
[Middle English embelishen, from Old French embellir, embelliss- : en-, causative pref.; see en-1 + bel, beautiful (from Latin bellus; see deu-2 in Indo-European roots).] em·bel'lish·er n.
c.1340, "to render beautiful," from O.Fr. embelliss-, pp. stem of embellir "make beautiful, ornament," from bel "beautiful," from L. bellus. Meaning "dress up (a narration) with fictitious matter" is from 1447.