"glib speech, pitch," 1896, probably from verb (1894) meaning "to speak in a glib manner," earlier "to play circus music" (1870, in a German-American context), from German spielen "to play," from Old High German spilon (cognate with Old English spilian "to play"). The noun also perhaps from German Spiel "play, game."
spicy
spider
spider-plant
spider-web
spidery
spiel
spiff
spiffy
spigot
spike
spiked