dialect (n.) Look up dialect at Dictionary.com
1570s, "form of speech of a region or group," from Middle French dialecte, from Latin dialectus "local language, way of speaking, conversation," from Greek dialektos "talk, conversation, speech;" also "the language of a country, dialect," from dialegesthai "converse with each other," from dia- "across, between" (see dia-) + legein "speak," from PIE root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')."