Where does “microdiorite” come from?

microdiorite (English) comes from English diorite, from French diorite, from Ancient Greek διορίζω, from Ancient Greek ὁρίζω, from Ancient Greek -ίζω, from Proto-Hellenic -íďďō, from Proto-Indo-European -idyéti, from Proto-Indo-European -yéti — he, she.

microdiorite (English): A course-grained igneous rock, of volcanic origin, containing mostly plagioclase feldspar; a rock whose composition is intermediate between andesite and diorite

Definitions

  1. A course-grained igneous rock, of volcanic origin, containing mostly plagioclase feldspar; a rock whose composition is intermediate between andesite and diorite

Ancestry of “microdiorite”, step by step

microdiorite traces back through two separate lines of ancestry.

via English diorite

StepLanguageWordMeaning
1EnglishdioriteA grey intrusive igneous rock composed mostly of...
2Frenchdioritediorite
3Ancient Greekδιορίζωdistinguish
4Ancient GreekὁρίζωI divide, separate from; I mark out; I ordain,...
5Ancient Greek-ίζωUsed to form verbs from nouns, adjectives and...
6Proto-Hellenic-íďďō
7Proto-Indo-European-idyéti
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she

via English micro

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