"Grant" is a verb and a noun and, as such, does not have a superlative degree.
Superlative to "More" is the word, "Most".
what is the superlative word for blue
The superlative word for heavy is "heaviest."
The superlative for the word generous is most generous.
Superlative the silly
No, the superlative form is "gentlest."
most beautiful
The superlative form of genuine is more genuine.
What's the comparative and superlative of the word "exact"
Comparative: uglier Superlative: ugliest
The superlative for willing would be "most willing." There is no one-word superlative.
What's the superlative of shine