Where does “microdialect” come from?

microdialect (English) comes from English dialect, from Middle French dialecte, from Latin dialectos, from Ancient Greek διάλεκτος, from Ancient Greek διαλέγομαι, from Ancient Greek δῐᾰ-, from Ancient Greek διά, from Proto-Indo-European dwís — two.

microdialect (English): A unique dialect, language system, or jargon used in a very small geographical region or by a very small number of individuals, like a couple, family, or community; marked by shared, private words, phrases, and grammatical quirks

Definitions

  1. A unique dialect, language system, or jargon used in a very small geographical region or by a very small number of individuals, like a couple, family, or community; marked by shared, private words, phrases, and grammatical quirks

Ancestry of “microdialect”, step by step

microdialect traces back through two separate lines of ancestry.

via English dialect

StepLanguageWordMeaning
1EnglishdialectA variety of a language that is characteristic of...
2Middle Frenchdialectedialect
3Latindialectosa dialect; Nihilo lenior in convictores...
4Ancient Greekδιάλεκτοςdiscourse, conversation; manner of speech,...
5Ancient GreekδιαλέγομαιI converse, hold a discussion, debate, argue; I...
6Ancient Greekδῐᾰ-apart; through, across; through; in different...
7Ancient Greekδιάthroughout
8Proto-Indo-Europeandwístwice, doubly; in two
9Proto-Indo-Europeandwóh₁two

via English micro

StepLanguageWordMeaning
1EnglishmicroSmall, relatively small; short form of...
2Ancient Greekμικρόςlittle, small
3Proto-Indo-Europeanmēy-soft, tender, dear
Every word from Proto-Indo-European dwóh₁