a cluster of languages spoken on Madagascar and adjacent islands and belonging to the Austronesian (Malayo-Polynesian) family of languages. The various Malagasy dialects are all closely related, having diversified only in the last 2,000 years when Madagascar was settled by an Indonesian people. The languages contain some words of Bantu, Swahili, Arab, English, and French origin. Since 1820 the Merina dialect, written in the Roman alphabet, has been the official language of the island.