1925, "a crippled leg," also "a crippled person" (1929), perhaps by association with limp, or a corruption of gammy (see game (adj.)).
also gymp, ornamental material for trimming dresses, furniture, etc., 1660s, probably from French guimpe, Old French guimple "wimple, headdress, veil" (12c.), from Frankish *wimpil- or some other Germanic source (compare Old High German wimpal, and see wimple).
updated on March 04, 2015