genitive

The species name populi is a Latin singular noun in the genitive case meaning "of the people."

From Science Daily ● Feb. 7, 2026

During the Force Majeure show, Izzard gets to grips with German sentence structure and declensions, earning knowing applause from the Berlin crowd for his perfect use of the fiendishly tricky genitive case at one stage.

From Reuters ● Jan. 29, 2014

The genitive you are mine / is a phrase I cherished only when I'd moved on / and couldn't use it.

From The Guardian ● Apr. 20, 2013

But that has nothing to do with the antecedent being in the genitive case; it’s just as much of a problem in Sophie and her mother think she’s fat.

From "The Sense of Style" by Steven Pinker

But Toni Morrison’s is not an adjective, like red or beautiful; it’s a noun phrase in genitive case.

From "The Sense of Style" by Steven Pinker

Very many of the Greek "genitives absolute," we remember, were to be rendered by quum, with a subjunctive pluperfect—an enormous mystery to us at the time.

From Toronto of Old by Henry Scadding

The genitives of the Third Personal Pronoun, his, his, hiere, her, hiera, their, are indeclinable.

From Anglo-Saxon Grammar and Exercise Book with Inflections, Syntax, Selections for Reading, and Glossary by C. Alphonso (Charles Alphonso) Smith

It is one of the common genitives of the Gaelic dialects, and as such is important, for it is not recognised in Welsh or Breton. 

From A Handbook of the Cornish Language chiefly in its latest stages with some account of its history and literature by Henry Jenner

The explanation seems to be that these names are true genitives, and that John Parsons was John the Parson's man, while John Monks was employed by the monastery.

From The Romance of Names by Ernest Weekley

Several old genitives and plural forms continued to exist, and the dative or prepositional case has usually a final e.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" by Various