- Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
- Perseus: Lane's Lexicon (in text format)
- 1 times as verb ysT
As it is, whenever Our messages are conveyed unto them in all their clarity, thou canst perceive utter repugnance on the faces of those who are bent on denying the truth: they would almost assault those who convey Our messages unto them! Say: Shall I, then, tell you of something worse than what you feel at present?* It is the fire [of the hereafter] that God has promised to those who are bent on denying the truth: and how vile a journey's end!"