The word(s) "estimate" appears 4 time(s) in 3 verse(s) in Quran in Mohsin Khan translation.

(1) They (the Jews, Quraish pagans, idolaters) did not estimate Allah with an estimation due to Him when they said: "Nothing did Allah send down to any human being (by revelation)." Say (O Muhammad صلى الله عليه وسلم): "Who then sent down the Book which Musa (Moses) brought, a light and a guidance to mankind which you (the Jews) have made into (separate) papersheets, disclosing (some of it) and concealing much. And you (believers in Allah and His Messenger Muhammad صلى الله عليه وسلم) were taught (through the Qur'an) that which neither you nor your fathers knew." Say: "Allah (sent it down)." Then leave them to play in their vain discussions. (Tafsir Al-Qurtubi).

(2) They have not estimated Allah His Rightful estimate. Verily, Allah is All-Strong, All-Mighty.

(3) They made not a just estimate of Allah such as is due to Him. And on the Day of Resurrection the whole of the earth will be grasped by His Hand and the heavens will be rolled up in His Right Hand.Glorified be He, and High be He above all that they associate as partners with Him!