sinlike

O.E. synn "moral wrongdoing, offense against God, misdeed," from P.Gmc. *sundjo (cf. O.S. sundia, O.Fris. sende, M.Du. sonde, Ger. Sünde "sin, transgression, trespass, offense"), probably ult. "true" (cf. Goth. sonjis, O.N. sannr "true"), from PIE *es-ont-, prp. of base *es- "to be" (see is). The semantic development is via notion of "to be truly the one (who is guilty)," as in O.N. phrase verð sannr at "be found guilty of," and the use of the phrase "it is being" in Hittite confessional formula. The same process probably yielded the L. word sons (gen. sontis) "guilty, criminal" from prp. of sum, esse "to be, that which is." Some etymologists believe the Gmc. word was an early borrowing directly from the L. genitive. Sin-eater is attested from 1686. To live in sin "cohabit without marriage" is from 1838. Ice hockey slang sin bin "penalty box" is attested from 1950.