What is the verb of unusual?

There isn't a single verb that directly corresponds to the adjective "unusual." However, you can use several verbs to express the idea of being unusual or doing something unusual:

For describing something:

* Differ: This implies a noticeable difference from the norm. Example: "This painting differs from his usual style."

* Stand out: This emphasizes the quality of being noticeable or remarkable. Example: "Her bright purple hair made her stand out in the crowd."

* Diverge: This suggests moving away from the expected or typical path. Example: "Their opinions on the matter diverged significantly."

* Distinguish: This implies a unique quality that sets something apart. Example: "The museum's collection distinguishes it from all others in the city."

For describing an action:

* Unusually do: This is a simple way to convey the idea of doing something out of the ordinary. Example: "He unusually stayed up late to watch the movie."

* Behave unusually: This focuses on the behavior or actions being unusual. Example: "The dog behaved unusually calmly around the new cat."

* Act out of character: This implies a departure from a person's typical behavior. Example: "She acted completely out of character when she agreed to go skydiving."

The best verb to use depends on the specific context and the nuance you want to convey.