The Collaborative International Dictionary
Filibeg
Filibeg \Fil"i*beg\, n. [Gael. feileadhbeag, i. e., little kilt; feileadh kilt + beag little, small; cf. filleadh a plait, fold.] Same as Kilt. [Written also philibeg.]
Wiktionary
filibeg
n. (alternative form of philibeg English)