Where does “aerogramme” come from?

aerogramme (English) comes from English -gramme, from English -gram, from Ancient Greek γράμμα, from Ancient Greek γράφω, from Proto-Hellenic grəpʰō, from Proto-Indo-European gerbʰ-, from Proto-Indo-European ger- — to turn, bend, twist, wind; to tie, bind...

Ancestry of “aerogramme”, step by step

StepLanguageWordMeaning
1English-grammeAlternative form of -gram
2English-gramSomething written, drawn or otherwise recorded
3Ancient Greekγράμμαthat which is written, that which is drawn,...
4Ancient Greekγράφωto scratch, cut into; to draw, sketch, paint; to...
5Proto-Hellenicgrəpʰōto scratch, cut or carve into
6Proto-Indo-Europeangerbʰ-to carve
7Proto-Indo-Europeanger-to turn, bend, twist, wind; to tie, bind...
Every word from Proto-Indo-European ger-Every word from Proto-Indo-European gerbʰ-Every word from Proto-Hellenic grəpʰō