Rusty
[ˈrʌsti]Meaning
from a nickname for someone with rusty, reddish-brown hair
Background Story
Behind the Name records Rusty as coming from a nickname originally given to someone with a rusty, or reddish-brown, hair colour. Wikipedia adds that it is also a nickname for people with red hair, a rust-hued skin tone, or the given name Russell.
Temperament

Related Names
Randy
Diminutive of randall, randolf or miranda
Rebel
English word for a person who resists or defies authority
Redd
A variant of Red
Richy
A diminutive form of Richard, meaning 'brave ruler'.
Ricky
Diminutive of Richard
Rover
From an English word, the agent noun of rove, meaning "roam, wander".
Rowdy
English word for someone who is noisy or disorderly
Ruddy
English given name, recorded in user-submitted entries for masculine use
Rufus
Latin cognomen meaning "red-haired"
Russ
Short form of Russell