ض ن نḍ-n-n
(ض) ضَنَّ يَضِنُّ ضَنًّا وَضَنَانَةًḍanna yaḍinnu ḍannan wa-ḍanānatan (original form: ضَنَنَ يَضْنِنُḍanana yaḍninu): to be niggardly, to withhold something.
ضَنِيْنḍanīn (pattern فَعِيْلfaʿīl): niggardly, one who withholds. Only once in the Quran, and that in description of the Prophet (peace and blessings be upon him): ﴿وَمَا هُوَ عَلَي الْغَيْبِ بِضَنِيْنٍ﴾ (At-Takwīr 81:24) — i.e. he is not niggardly in conveying the tidings of the unseen.