The word(s) "appoint" appears 84 time(s) in 80 verse(s) in Quran in Mohsin Khan translation.

(51) And it is He Who has created man from water, and has appointed for him kindred by blood, and kindred by marriage. And your Lord is Ever All-Powerful to do what He wills.

(52) So the sorcerers were assembled at a fixed time on a day appointed.

(53) And they ask you to hasten on the torment (for them): and had it not been for a term appointed, the torment would certainly have come to them. And surely, it will come upon them suddenly while they perceive not!

(54) Do they not think deeply (in their ownselves) about themselves (how Allah created them from nothing, and similarly He will resurrect them)? Allah has created not the heavens and the earth, and all that is between them, except with truth and for an appointed term. And indeed many of mankind deny the Meeting with their Lord. [Tafsir At-Tabari].

(55) See you not (O Muhammad صلى الله عليه وسلم) that Allah merges the night into the day (i.e. the decrease in the hours of the night are added to the hours of the day), and merges the day into the night (i.e. the decrease in the hours of day are added to the hours of night), and has subjected the sun and the moon, each running its course for a term appointed; and that Allah is All-Aware of what you do.

(56) Say (O Muhammad صلى الله عليه وسلم): "The appointment to you is for a Day, which you cannot put back for an hour (or a moment) nor put forward."

(57) He merges the night into the day (i.e. the decrease in the hours of the night is added to the hours of the day), and He merges the day into the night (i.e. the decrease in the hours of the day is added to the hours of the night). And He has subjected the sun and the moon: each runs its course for a term appointed. Such is Allah, your Lord; His is the kingdom. And those, whom you invoke or call upon instead of Him, own not even a Qitmir (the thin membrane over the date-stone).

(58) And if Allah were to punish men for that which they earned, He would not leave a moving (living) creature on the surface of the earth; but He gives them respite to an appointed term: and when their term comes, then verily, Allah is Ever All-Seer of His slaves.

(59) And the sun runs on its fixed course for a term (appointed). That is the Decree of the All-Mighty, the All-Knowing.

(60) "Till the Day of the time appointed."