What is a sweet smelling feathery herb eaten with fish?

The herb you're likely thinking of is dill.

Here's why:

* Sweet Smell: Dill has a bright, fresh, and slightly anise-like aroma.

* Feathery: Dill leaves are finely divided and feathery in appearance.

* Eaten with Fish: Dill is a classic accompaniment to fish, especially salmon, cod, and trout. It adds a refreshing and flavorful element to the dish.

Other herbs that could fit the description are:

* Tarragon: This herb has a slightly sweet, licorice-like flavor and delicate, feathery leaves. It's often used in French cuisine with fish.

* Parsley: While not as sweet as dill, parsley is another feathery herb commonly used with fish.

Let me know if you have any other details about the herb that could help me narrow it down!