forþþegn

By surface analysis, forþ- +‎ þeġn.

• IPA^(key): /ˈforθˌθejn/, [ˈforˠθˌθejn]

forþþeġn m

1. a thane or noble of high rank
   • late 10th century, Ælfric, Lives of Saints

     Sum forþþeġn wæs þā weliġ on þām lande, Florus ġehāten, and sē hæfde ġemynt mynster tō ārǣrenne and mid munecum ġesettan

     There was a certain wealthy high-ranking noble in that land named Florus, and he had a mind to establish a monastery and settle monks in it.

Strong a-stem:

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