The word(s) "betray" appears 11 time(s) in 8 verse(s) in Quran in Mohsin Khan translation.

(1) Among the people of the Scripture (Jews and Christians) is he who, if entrusted with a Qintar (a great amount of wealth, etc.), will readily pay it back; and among them there is he who, if entrusted with a single silver coin, will not repay it unless you constantly stand demanding, because they say: "There is no blame on us to betray and take the properties of the illiterates (Arabs)." But they tell a lie against Allah while they know it.

(2) And argue not on behalf of those who deceive themselves. Verily, Allah does not like anyone who is a betrayer, sinner.

(3) O you who believe! betray not Allah and His Messenger, nor betray knowingly your Amanat (things entrusted to you, and all the duties which Allah has ordained for you).

(4) But if they intend to betray you (O Muhammad صلى الله عليه وسلم), they indeed betrayed Allah before. So He gave (you) power over them. And Allah is All-Knower, All-Wise.

(5) And she, in whose house he was, sought to seduce him (to do an evil act), and she closed the doors and said: "Come on, O you." He said: "I seek refuge in Allah (or Allah forbid)! Truly, he (your husband) is my master! He made my living in a great comfort! (So I will never betray him). Verily, the Zalimun (wrong and evil-doers) will never be successful."

(6) [Then Yusuf (Joseph) said: "I asked for this enquiry] in order that he (Al-'Aziz) may know that I betrayed him not in (his) absence". And, verily! Allah guides not the plot of the betrayers.

(7) And Shaitan (Satan) will say when the matter has been decided: "Verily, Allah promised you a promise of truth. And I too promised you, but I betrayed you. I had no authority over you except that I called you, and you responded to me. So blame me not, but blame yourselves. I cannot help you, nor can you help me. I deny your former act in associating me (Satan) as a partner with Allah (by obeying me in the life of the world). Verily, there is a painful torment for the Zalimun (polytheists and wrong-doers)."

(8) Allah sets forth an example for those who disbelieve: the wife of Nuh (Noah) and the wife of Lut (Lot). They were under two of our righteous slaves, but they both betrayed them (their husbands by rejecting their doctrine). So they [Nuh (Noah) and Lut (Lot) عليهما السلام] availed them (their respective wives) not against Allah and it was said: "Enter the Fire along with those who enter!"