Meaning

noun the usage or vocabulary that is characteristic of a specific group of people

originFrom Middle French dialecte, from Latin dialectos, dialectus, from Ancient Greek διάλεκτος (diálektos, “conversation, the language of a country or a place or a nation, the local idiom which derives from a dominant language”), from διαλέγομαι (dialégomai, “to participate in a dialogue”), from διά (diá, “inter, through”) + λέγω (légō, “to speak”); by surface analysis, dia- + -lect.

Etymology from Wiktionary, CC BY-SA 3.0