د ھ یd-h-y
(ف) دَهٰى يَدْهٰى دَهْيًاdahā yadhā dahyan: for a calamity to befall someone.
دَاهِيَةdāhiyah pl. دَوَاهٍdawāh: a great calamity, a grievous disaster.
اَدْهٰىadhā (elative, ism tafḍīl): more grievous and more dreadful. Only once in the Quran: ﴿وَالسَّاعَةُ اَدْهٰى وَاَمَرُّ﴾ (Al-Qamar 54:46) — i.e. the Hour is more dreadful and more bitter.