Clauson (1972)
An etimological dictionary of pre-thirteenth-century Turkish
p. 226
D ürkit-
Caus. f. of ürk-; ‘to startle (someone Acc.); to scare (game, etc.) away’. S.i.a.m.l.g. Türkü viii ff. IrkB 21 (üd-): Man. neçe korkıt(t)ımız ürkit(t)imiz erser ‘if we have somehow frightened or startled people’ Chuas. 87-8; Xak. xi ol ko:y ürküttü ‘he scared (naffara) the sheep’ (etc.) Kaş. I 263 (ürkütü:r, ürkütme:k): Çağ. xv ff. ürküt- (spelt) Caus. f.; ram dadan ‘to scare, frighten’, also spelt hürküt- San. 69r. 12; hürküt- (spelt) Caus. f., alternative form of ürküt- ramânîdan San. 324v. 9 (quotn.): Kip. xiii caffala ‘to scare away’ ürküt- Hou. 39, 11: xiv ditto İd. 12.