Rep \Rep\ (r?p), n. [Prob. a corruption of rib: cf. F. reps.] A fabric made of silk or wool, or of silk and wool, and having a transversely corded or ribbed surface.
Source: Webster's Revised Unabridged Dictionary (1913)
Rep \Rep\, a. Formed with a surface closely corded, or ribbed transversely; -- applied to textile fabrics of silk or wool; as, rep silk.