The Collaborative International Dictionary of English v.0.48:
fillagree \fillagree\ n. variant spelling of filigree. Syn: filigree, filagree. [WordNet 1.5]WordNet (r) 3.0 (2006):
fillagree n 1: delicate and intricate ornamentation (usually in gold or silver or other fine twisted wire) [syn: filigree, filagree, fillagree]