The precursor of the thegn was the gesith, the companion of the king or great lord, the member of his comitatus, and the word thegn began to be used to describe a military gesith.
I.), "the very name, like that of the gesith, has different senses in different ages and kingdoms, but the original idea of military service runs through all the meanings of thegn, as that of personal association is traceable in all the applications of gesith."
As Stubbs says " the thegn seems to be primarily the warrior gesith " - the gesithas forming the chosen band of companions (comites) of the German chiefs (principes) noticed by Tacitus - " he is probably the gesith who had a particular military duty in his master's service "; and he adds that from the reign of Athelstan " the gesith is lost sight of except very occasionally, the more important class having become thegns, and the lesser sort sinking into the rank of mere servants of the king."
How would you define gesith? Add your definition here.