The English word sin derives from Old English synn. The same root appears in several other Germanic languages, e.g. Old Norse synd, or German Sünde. The word may derive, ultimately, from *es-, one of the Indo-European roots that meant "to be," and is a present participle, "being." Latin, also has an old present participle of esse in the word sons, sont-, which came to mean "guilty" in Latin. The root meaning would appear to be, "it is true;" that is, "the charge has been proven." The Greek word hamartia is often translated as sin in the New Testament; it means "to miss the mark" or "to miss the target".
Like ancient Rome, we today are once more importing every form of exotic superstition in the hope of finding the right remedy for our sickness.
-- C. G. Jung
Richard Wilhelm: In Memoriam (1930), CW 15: pg. 60