Source : Webster's Revised Unabridged Dictionary (1913)

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}.]