In this sentence, would nightly be an adjective or adverb?

Nightly hunts may provide rich feasts.

I am about 90 percent sure that it is an adjective.

You are correct. "Nightly" is an adjective modifying "hunts."

To determine if "nightly" is an adjective or an adverb in the given sentence, we need to understand its role and function in the sentence.

First, let's look at the word "nightly" itself. "Nightly" refers to something that occurs every night or happens during the night. It is derived from the noun "night" with the suffix "-ly," which is commonly used to form adverbs.

In the sentence "Nightly hunts may provide rich feasts," "nightly" describes the noun "hunts." It tells us the frequency or timing of the hunts, indicating that they occur every night. Therefore, in this context, "nightly" is functioning as an adjective modifying the noun "hunts."

So, you are correct. In this sentence, "nightly" is an adjective.