Arden is probably of Latin origin, from the word "ardent"
(fervent or enthusiastic) and is also defined as a expansive wooded
area, such as Robin-hood's Sherwood Forest or the Forests of Arden
in central England, for example, where enthusiastic communities
might thrive.
The British Forests of Arden were apparently home to the Knights
Templar from 1162 until 1312, an ardent Order.
Shakespeare set "As You Like It" in the Forests of Arden, The
town of Arden, Delaware took its name from this play.