saṅkati
to doubt, hesitate, to be uncertain about pres. (med.) 1st sg. saṅke SN.i.111; Ja.iii.253 (= āsankāmi C.); Ja.vi.312 (na sanke maraṇ’āgamāya); Pot. saṅketha Ja.ii.53 = Ja.v.85. Pass. saṅkīyati SN iii. = Kv.141; AN.iv.246.
śaṅk, Vedic śankate, cp. Lat. cunctor to hesitate; Goth. hāhan = Ags. hangon “to hang”; Oicel. hāētta danger