Which language family did J.R.R. Tolkien study professionally as a philologist?

J.R.R. Tolkien studied Germanic languages professionally as a philologist.

Tolkien’s academic work centered on historical languages and the literature connected with them, especially the Germanic language family. He studied Old English, Old Norse, Gothic, and related linguistic traditions. His expertise in these languages strongly influenced the names, sounds, poetry, and cultural background of Middle-earth.

He served as a professor at the University of Leeds and later at the University of Oxford. Tolkien’s 1936 lecture “Beowulf: The Monsters and the Critics” became especially influential in the study of Old English literature because it argued that the poem’s monsters were central to its artistic design rather than irrelevant distractions.

Tolkien also invented languages such as Quenya and Sindarin for his fiction. Those constructed languages were inspired by real linguistic patterns, but they are not members of the historical Germanic family. His professional field was philology, not simply modern-language teaching.