J.R.R. Tolkien’s academic field at Oxford was philology.
Philology studies language through historical texts, including how words, sounds and grammatical forms change over time. Tolkien specialized in Germanic languages and medieval literature, with particular expertise in Old English and Middle English. This scholarly background helped him analyze texts such as Beowulf and Chaucer while also creating fictional languages with historical depth.
Tolkien’s professional titles used more specific labels, including professor of Anglo-Saxon and professor of English language and literature. Philology is the broader discipline that connects these areas of work.
The term is sometimes confused with modern linguistics, although the fields overlap. Tolkien’s approach placed especially strong emphasis on written texts, historical comparison and the cultural history carried by words. His fictional languages were designed with related forms, sound changes and imagined histories rather than as random collections of vocabulary.