filigree
filigree (fĭlʹĭ-grē) noun
1. Delicate and intricate ornamental work made from gold, silver, or other fine twisted wire.
2. a. An intricate, delicate, or fanciful ornamentation. b. A design resembling such ornamentation: filigrees of frosting on a cake.
verb, transitive
filigreed, filigreeing, filigrees
To decorate with or as if with filigree.
[Alteration of French filigrane, from Italian filigrana : Latin fīlum, thread + Latin grānum, grain.]