Where does “Proto-Austronesian” come from?

Proto-Austronesian (English) comes from English proto, from English proto-, from Ancient Greek πρωτο-, from Ancient Greek πρῶτος, from Ancient Greek πρό, from Proto-Indo-European pró, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Proto-Austronesian (English): A proposed common ancestor to the group of Austronesian languages comprising Malayo-Polynesian and Formosan languages

Definitions

  1. A proposed common ancestor to the group of Austronesian languages comprising Malayo-Polynesian and Formosan languages

Ancestry of “Proto-Austronesian”, step by step

Proto-Austronesian traces back through two separate lines of ancestry.

via English proto

StepLanguageWordMeaning
1EnglishprotoPrototypical; preceding the proper beginning of...
2Englishproto-first; most recent common ancestor of; Relating...
3Ancient Greekπρωτο-first, primary
4Ancient Greekπρῶτοςfirst; earliest; foremost, most prominent
5Ancient Greekπρόbefore; before, in front, forth, forward; before,...
6Proto-Indo-Europeanprótoward, leading to
7Proto-Indo-Europeanper-before, in front; first; to go through
8Proto-Indo-Europeanpr̥tóspassed , crossed

via English Austronesian

StepLanguageWordMeaning
1EnglishAustronesianPertaining to the Austronesian language family,...
2GermanAustronesischAustronesian
3LatinausterThe south wind; south
4Proto-Italic*austeros
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European pró