Worthy sibling for Oak, Elm, Juniper, and Spruce.

Knight (as opposed to Night) is a name clad in shiny armor. This high-ranking word name was introduced by singers Kelis and Nas. Knight might join brothers King, Royal, and Noble in a new definition of royal baby names.

Twain can be thought of as a modernization (and possible namesake) of the dated Wayne, seasoned with the humor of Mark Twain, who adopted it from a river term.

As flinty and steely as Mr. Eastwood.

Unusual and simple nature name worthy of further consideration.