dierne

Etymology 1
From.

Adjective

 * 1) secret, hidden
 * 2) * Beowulf
 * "ang"

- ne sceal dyrne sum wesan


 * 1) * "The Wife's Lament"
 * "ang"

- Ongunnon þæt þæs mannes māgas hyċġan þurh dierne ġeþōht þæt hīe tōdǣlden unc.

Etymology 2
Substantified from the above.

Noun

 * 1) a secret