[1895–1900; back formation from skiagraphy the process of making skiagraphs ‹ Gk skiāgraphía painting in light and shade, equiv. to skiā-, comb. form of skiā́ shade + -graphia -graphy]This word is first recorded in the period 1895–1900. Other words that entered Englishat around the same time include: Marxism, flamenco, frame of reference, freewheel, slapstick