Where does “Autofahrergruß” come from?

Autofahrergruß (German) comes from German Autofahrer, from German Auto, from German automobil, from Spanish automóvil, from Russian автомоби́ль, from French automobile, from French auto-, from Ancient Greek αὐτο- — Postpositional intensifying particle: indeed, at any rate, in fact.

Autofahrergruß (German): tap on one's forehead offensive gesture

Definitions

  1. tap on one's forehead offensive gesture

Ancestry of “Autofahrergruß”, step by step

Autofahrergruß traces back through two separate lines of ancestry.

via German Autofahrer

StepLanguageWordMeaning
1GermanAutofahrerA motorist
2GermanAutocar
3Germanautomobilautomobile
4Spanishautomóvilautomobile
5Russianавтомоби́льcar, automobile, motorcar
6Frenchautomobileautomotive; automobile
7Frenchauto-auto- regarding oneself
8Ancient Greekαὐτο-self-
9Ancient Greekαὐτόςαὐτή f, αὐτό n; "first/second declension";...
10Proto-Indo-Europeanh₂ewaway from, off; again
11Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

via German Gruß

StepLanguageWordMeaning
1GermanGrußgreeting; compliment; salute
2Germangrüßento greet
3Middle High Germangrüezen
4Old High Germangruozzen
5Proto-West Germanicgrōtijanto address, to greet
6Proto-Germanicgrōtijanąto cause to weep; make cry; to scold; to address
7Proto-Germanicgrētanąto weep, to cry
8Proto-Indo-Europeangʰrēw-to grind, rub
9Proto-Indo-Europeanǵʰer-to yearn for; to enclose; bowels, intestines
Every word from Proto-Indo-European ǵʰeEvery word from Proto-Indo-European h₂ewEvery word from Ancient Greek αὐτός