unleaslice

From un- +‎ lēas +‎ -līċe.

unlēaslīċe

1. truly
   • c. 992, Ælfric, "Sermon on the Nativiity of Our Lord"

     ...and hēo ġeseah ða þæt his bodung unlēaslīce ġefylled wæs.

     ...and she then saw that his announcement was truly fulfilled.

• Joseph Bosworth, T. Northcote Toller (1898) “un-leáslíce”, in An Anglo-Saxon Dictionary, second edition, Oxford: Oxford University Press.