Un-slæc

Selon le Dictionnaire Anglo-Saxon :

-sleac;

un-slæc

adj. Not slack, not lazy, strenuous, active, diligent :-- Unsleac inpiger, Wrt. Voc. ii. 47, 30: 93, 15: Kent. Gl. 140. [Icel. ú-slakr.] un-slæc