filigrain
Fil"i*grain, Fil"i*grane, n. Etym: [Sp. filigrana (cf. It. filigrana, E. filigrane), fr. L. filuma thread + granum grain. See File a row, and Grain, and cf. Filigree.] Defn: Filigree. [Archaic] With her head . . . touches the crown of filigrane. Longfellow.