The word(s) "dost" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) Our Lord! and grant us what Thou hast promised us by Thy apostles; and disgrace us not on the day of resurrection; surely Thou dost not fail to perform the promise.

(2) He it is Who makes you travel by land and sea; until when you are in the ships, and they sail on with them in a pleasant breeze, and they rejoice, a violent wind overtakes them and the billows surge in on them from all sides, and they become certain that they are encompassed about, they pray to Allah, being sincere to Him in obedience: If Thou dost deliver us from this, we will most certainly be of the grateful ones.