Final answer:
Wiglaf demonstrates his loyalty and honesty in 'Beowulf' by standing with King Beowulf against the dragon when all others flee, and by rebuking the other warriors for their lack of loyalty. His actions embody the ideal qualities of an honorable and virtuous Anglo-Saxon warrior.
Step-by-step explanation:
In Beowulf, Wiglaf proves his honesty and loyalty in several significant ways. When Beowulf faces the dragon, all of his other warriors flee, fearing for their lives, yet Wiglaf stays to fight alongside his king, demonstrating his steadfastness and loyalty. Wiglaf's adherence to the feudal pledge of fealty—similar to the historical pledge where Harold Godwinson pledges loyalty to William of Normandy—highlights his honorable character.
Moreover, Wiglaf chastises the other warriors for their betrayal and reminds them of the importance of loyalty and honor. His actions and words show that he is true to his king and the moral principles that govern his position as a thane. His expression of honest indignation transcends mere duty; it is a manifestation of his virtuous character, mirroring the ideal qualities of a warrior in the Anglo-Saxon era.