This is the 1799th most frequent Russian word.
контракту
The Russian word "контракту" is the dative case form of "контракт" and means "to the contract" or "for the contract" in English.
Here, "контракту" is used to indicate an agreement or obligation that is stipulated in a written formal contract.
Мы согласились по контракту выполнить этот проект.
We agreed by contract to complete this project.
In this sentence, "контракту" is used in the dative case to refer to a specific contract whose conditions were met.
Все условия по данному контракту были соблюдены.
All terms of this contract were fulfilled.
The word "контракту" here describes the context of an action taking place under the provisions or conditions outlined by the contract.