(س) حَفِظَ يَحْفَظُ حِفْظًاḥafiẓa yaḥfaẓu ḥifẓan: to keep something from being lost or going to waste; with this basic sense it is used in several meanings: (1) to guard (2) to watch over (3) to memorise. ﴿يَحْفَظُوْنَهُۥ مِنْ اَمْرِ اللّٰهِ﴾ (Ar-Raʿd 13:11)
اِحْفَظْiḥfaẓ (imperative, amr): guard, watch over. ﴿وَاحْفَظُوْٓا اَيْمَانَكُمْ﴾ (Al-Māʾidah 5:89)
حَفِيْظٌḥafīẓ (pattern of فَعِيْلٌfaʿīl): always and in every circumstance (1) one who guards or watches over (2) one who preserves. ﴿وَمَآ اَنَا عَلَيْكُمْ بِحَفِيْظٍ﴾ (Al-Anʿām 6:104)
حَافِظٌḥāfiẓ (active participle, ism fāʿil): guardian, one who watches over. ﴿اِنَّا نَحْنُ نَزَّلْنَا الذِّكْرَ وَاِنَّا لَهُۥ لَحٰفِظُوْنَ﴾ (Al-Ḥijr 15:9)
مَحْفُوْظٌmaḥfūẓ (passive participle, ism mafʿūl): guarded, preserved. ﴿فِيْ لَوْحٍ مَّحْفُوْظٍ﴾ (Al-Burūj 85:22)
حَفَظَةٌḥafaẓah (plural): guardians, watchers. ﴿وَيُرْسِلُ عَلَيْكُمْ حَفَظَةً﴾ (Al-Anʿām 6:61)
Form III (mufāʿalah) حَافَظَ يُحَافِظُ مُحَافَظَةًḥāfaẓa yuḥāfiẓu muḥāfaẓatan: to watch over something continually, i.e. to be constant in a task.
حَافِظْḥāfiẓ (imperative, amr): watch over continually, be constant. ﴿حٰفِظُوْا عَلَي الصَّلَوٰتِ وَالصَّلٰوةِ الْوُسْطٰى﴾ (Al-Baqarah 2:238)
Form V (tafaʿʿul) تَحَفَّظَ يَتَحَفَّظُ تَحَفُّظًاtaḥaffaẓa yataḥaffaẓu taḥaffuẓan: to be cautious; to keep on one's guard (this verb is not used in the Quran).
Form X (istifʿāl) اِسْتَحْفَظَ يَسْتَحْفِظُ اِسْتِحْفَاظًاistaḥfaẓa yastaḥfiẓu istiḥfāẓan: to ask for something to be guarded, to entrust for safekeeping. ﴿بِمَا اسْتُحْفِظُوْا مِنْ كِتٰبِ اللّٰهِ﴾ (Al-Māʾidah 5:44)