Where does “operatorless” come from?

operatorless (English) comes from English operator, from Latin operatōr, from Latin operor, from Latin opera, from Latin Opus, from Ancient Greek Ὀποῦς, from Ancient Greek ὀπός, from Proto-Indo-European sokʷós — to follow; to see; to say.

operatorless (English): Without an operator (person who operates); fully automatic

Definitions

  1. Without an operator (person who operates); fully automatic

Ancestry of “operatorless”, step by step

operatorless traces back through two separate lines of ancestry.

via English operator

StepLanguageWordMeaning
1EnglishoperatorOne who operates; A telecommunications...
2Latinoperatōrworker, operator
3LatinoperorI work, labor
4Latinoperawork, exertion, effort; service; care, attention...
5LatinOpusThe capital city of the Locri and birthplace of Patroclus
6Ancient GreekὈποῦςOpus, Greece
7Ancient Greekὀπόςjuice, vegetable/plant juice; fig-juice
8Proto-Indo-Europeansokʷósjuice of plants
9Proto-Indo-Europeansekʷ-to follow; to see; to say

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus
Every word from Proto-Indo-European sekʷ-