Bilk

v. t. [imp. & p. p. BILKED; p. pr. & vb. n. BILKING.] [Cf. Goth. bilaukâm, to mock or deride; pref. bi, equiv. to be, q. v., and laikam, to leap or exult. Bilk in O. Eng. signifies nothing.] To frustrate or disappoint; to deceive or defraud, by non-fulfillment of engagement; as, to bilk a creditor.