This is the 7607th most frequent Russian word.
егошкин
"Егошкин" is not a standard Russian word; it appears to be a surname or a nonsensical/colloquial form.
The word 'Егоршкина' signifies possession, referring to a person named Егоршкин.
Студенты читали книгу Егоршкина и обсуждали её.
The students read Egorshkin's book and discussed it.
The term 'Егошкиных' describes a family, the plural possessive form associated with the name.
Картина висела на стене в доме Егошкиных.
The painting hung on the wall in the Egorshkins' house.
Here, 'Егошкин' is used as a proper noun, serving as a surname for a specific individual.