[sty] n, pl sties also styes [ME, fr. OE stig; akin to ON -sti sty] (bef. 12c) 1: a pen or enclosed housing for swine
2: an unkempt filthy place "this house is a ~"
[2]sty vb stied or styed ; sty.ing vt (bef. 12c): to lodge or keep in a sty ~ vi: to live in a sty [3]sty or stye n, pl sties or styes [short for obs. E styan, fr. (assumed) ME, alter. of OE stigend, fr. stigan to go up, rise--more at stair] (1617): an inflamed swelling of a sebaceous gland at the margin of an eyelid