أَرْهَمُ
More [and most] fruitful, or plentiful, or abundant in herbage or in the goods or conveniences or comforts of life: [as though meaning more, and most, watered by rain such as is termed
رِهْمَة:] so in the saying, نَزَلْنَا بِفُلَانٍ فَكُنَّا فِى أَرْهَمِ
جَانِبَيْهِ [We alighted at the dwelling of such a one, and we were in the more fruitful, &c., of the two sides of his place of abode; meaning, and we were entertained by him in the best, or most bountiful, manner]. (S.)