This is the 9328th most frequent Russian word.
суркова
"Суркова" is the feminine form of a surname derived from "сурок," meaning "groundhog" or "marmot" in Russian.
In this case, 'Суркова' is used as the last name of a person.
Суркова бежит по полю.
Surkov runs through the field.
Here, 'суркова' describes something made of marten, referring to the type of fur.
Шуба суркова теплая и мягкая.
The fur coat made of marten fur is warm and soft.
'Сурков' is part of a possessive surname indicating Mr. Surkova's action.