(ن) دَهَنَ يَدْهُنُ دَهْنًاdahana yadhunu dahnan: (1) to anoint the head with oil. (2) to moisten something, to soften it.
دُهْنٌduhn: the oil or fat of something. ﴿تَنْۢبُتُ بِالدُّهْنِ﴾ (Al-Muʾminūn 23:20)
دِهَانٌdihān: the dregs of oil; red leather. ﴿فَكَانَتْ وَرْدَةً كَالدِّهَانِ﴾ (Ar-Raḥmān 55:37)
Form IV (ifʿāl) اَدْهَنَ يُدْهِنُ اِدْهَانًاadhana yudhinu idhānan: to be soft, to go slack, to be compliant and temporising. ﴿وَدُّوْا لَوْ تُدْهِنُ فَيُدْهِنُوْنَ﴾ (Al-Qalam 68:9)
مُدْهِنٌmudhin (active participle, ism fāʿil): one who goes soft, who slackens. ﴿اَفَبِهٰذَا الْحَدِيْثِ اَنْتُمْ مُّدْهِنُوْنَ﴾ (Al-Wāqiʿah 56:81)