Dative case
In grammar, the dative case (abbreviated dat, or sometimes d when it is a core argument) is a grammatical case used in some languages to indicate the recipient or beneficiary of an action, as in "Maria Jacobo potum dedit", Latin for "Maria gave Jacob a drink" or "Maria gave a drink to Jacob". In this example, with a suffix of "o" to the name "Jacob", the dative marks what would be considered the indirect object of a verb in English.