O.E. stincan "emit a smell of any kind" (class III strong verb; past tense stonc), from W.Gmc. *stenkwanan (cf. O.S. stincan, O.H.G. stinkan, Du. stinken), from the root of
stench. O.E. swote stincan "to smell sweet," but offensive sense began O.E. and was primary by mid-13c.;