We longitudinally examined the trajectories of Latine mothers' (N = 116) language input to their children during book-sharing interactions at four points in development, when children were between ages 2 and 5 years. Mother-child dyads were video-recorded sharing a wordless picture book, and transcriptions of mothers' and children's language…

An in-depth examination of the acquisition of grammatical gender has not previously been conducted for Irish, an endangered indigenous language now typically acquired simultaneously with English, or as L2. Children acquiring Irish must contend with the opacity of the Irish gender system and the plurifunctionality of the inflections used to mark…