Vakinankaratra is a dialect of the Malagasy language spoken in the Vakinankaratra Region, after which it is named. It bears significant resemblance to the Merina dialect. Classification. Vakinankaratra is an Austronesian language part of the Plateaux branch of Malagasy language. Characteristics. Vakinankaratra dialect is a dialect very close to Merina but influenced by Betsileo.