ethical dative
form of the dative case applied to pronouns; used (in Latin and some other languages, but rare in English) to show a certain interest felt by the person indicated; e.g. "you" in "I'll rhyme you so eight years together" (Shakespeare)
en-US/ˈɛθɪkəl ˈdeɪdɪv/
en-GB/ˈɛθɪkl ˈdeɪtɪv/