Jespersen

Part of speech: noun

Definitions

1. Surname of Otto Jespersen, the Danish linguist known for his work on English grammar and phonetics
2. A Danish scholar, Otto Jespersen, who wrote influential studies of English grammar and language history
3. The family name borne by Otto Jespersen, a Danish philologist celebrated for his grammar of English

Etymology: Jespersen is a patronymic surname, meaning "son of Jesper," with Jesper being the Danish and Norwegian form of Jacob. Surnames of this type, ending in "-sen," were common across Scandinavia, where a son's name was formed by attaching "-sen" to his father's first name. The name belongs to Otto Jespersen, the Danish linguist whose work shaped the study of English grammar and phonetics. Scholars and students who encounter the name in linguistics texts usually know it through his influence, which is why it appears in English as a term of reference in the field. The word entered English as a borrowed surname, keeping its Danish and Norwegian spelling rather than being adapted to English patterns. It is not a common noun, so its use in English is confined almost entirely to references to the man and his family.