Thjalfi

noun, Scandinavian Mythology.
1.
the fastest of men and the servant of Thor.

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Thjazi
noun, Scandinavian Mythology. 1. a giant who carried away Idun and the apples of youth from Asgard.
Thjorsa
noun 1. a river in central Iceland, flowing SW to the Atlantic Ocean. About 143 miles (230 km) long.
Thm
1. Master of Theology. ThM Latin Theologiae Magister (Master of Theology)