† tylyesterObs.rare. Also tylyystere. [f.OE.tili-an (cf. teling vbl.n.) + -estre -ster.] An enchantress, sorceress. 14..Voc. in Wr.-Wülcker 582/4 Facimia, a forspeker or a tylyystere.Ibid. 582/22 Fascennina, i. femina que novit incantare, a tylyester.