sty 2 also stye (stī) n.
pl.sties also styes (stīz) Inflammation of one or more sebaceous glands of an eyelid.
[Alteration of Middle English styanye : styan, sty (from Old English stīgend, from present participle of stīgan, to rise; see steigh- in Indo-European roots) + eye, ye, eye; see eye.]
"inflamed swelling in the eyelid," 1617, probably a back-formation from M.E. styany (as though sty on eye), c.1440, from O.E. stigend "sty," lit. "riser," from prp. of stigan "go up, rise," from P.Gmc. *stig- (see stair).
Main Entry: sty Variant: orstye/'stI/ Function: noun Inflected Form: pluralstiesorstyes : aninflamed swelling of a sebaceous gland at the margin of an eyelid called also hordeolum