He whose generosity is most abundant.
“Said one who had knowledge from the Scripture, “I will bring it to you before your glance returns to you.” And when [Solomon] saw it placed before him, he said, “This is from the favor of my Lord to test me whether I will be grateful or ungrateful. And whoever is grateful
– his gratitude is only for [the benefit of] himself. And whoever is ungrateful – then indeed, my Lord is Free of need and Generous.”
(27:40) The Holy Quran

From the root k-r-m with the classical Arabic connotations: to be noble, grand, high minded to be generous, giving, beneficent to be highly esteemed, honored, prized, valued to be excellent, precious, valuable, rare to be productive, fruitful.
Alllah is the most generous, both physically and spiritually.
He is continually giving forth the grandest and most precious bounty.
His kind, noble and generous essence is most esteemed, valued and honored.
He endlessly gives all manner of precious gifts, including support and refuge.
He is eternally giving, even unto those who may not seem (to us) to be deserving.
