This is the 9214th most frequent Russian word.
смита
The word "смита" does not have a clear standalone meaning in Russian; it may be a name or typo.
Here 'Смита' is used as a possessive (genitive) form of the name 'Смит'.
Это работа Смита.
This is Smith's work.
In this sentence, 'Смита' again represents the possessive (genitive) case of 'Смит'.
Он взял книгу Смита.
He took Smith's book.
Here 'Смита' is used in the genitive case with an additional descriptive adjective 'трудолюбивого' (diligent).