د و مd-w-m
(ن) دَامَ يَدُوْمُ دَوَامًاdāma yadūmu dawāman: to remain still, to last forever.
مَا دَامَmā dāma (with the adverbial mā, carrying the sense of time): as long as he remained. ﴿اِلَّا مَا دُمْتَ عَلَيْهِ قَآئِمًا﴾ (Āl ʿImrān 3:75); ﴿وَاَوْصٰنِيْ بِالصَّلٰوةِ وَالزَّكٰوةِ مَا دُمْتُ حَيًّا﴾ (Maryam 19:31)
دَآئِمٌdāʾim (active participle, ism fāʿil): lasting, perpetual, constant in observance. ﴿عَلٰى صَلَاتِهِمْ دَآئِمُوْنَ﴾ (Al-Maʿārij 70:23); ﴿اُكُلُهَا دَآئِمٌ﴾ (Ar-Raʿd 13:35)(see verse 2:57, note 1)