Where does “trucker” come from?

I need to work through this etymology chain carefully. The chain shows: - English truck - English truckle - English truckle bed - English bed - Latin -are - English bed - Latin -us - English bed This chain appears problematic - it has circular elements and the Latin elements (-are, -us) don't clearly connect to the English words. The chain seems incomplete or corrupted. However, based on actual etymology: "trucker" comes from "truck" (a vehicle), with the -er agent suffix. The "truck" itself has a documented etymology from earlier English "truckle" (a small wheel or pulley), which relates to the wheeled nature of vehicles. But I'm instructed to "state only what the chain supports" and this chain is unclear. Let me work with what's explicitly given: The chain moves from "trucker" back through "truck" and

trucker (English): One who has done something offensive; a...

Definitions

  1. One who has done something offensive; a...

Ancestry of “trucker”, step by step

trucker traces back through two separate lines of ancestry.

via English truck

StepLanguageWordMeaning
1EnglishtruckA small wheel or roller, specifically the wheel...
2EnglishtruckleA small wheel; a caster or pulley; A small wheel...
3Middle Englishtrokelcaster, wheel, roller
4Anglo-Normantrocle
5Medieval Latintrochleaa block, sheaf containing one or more pulleys;...
6Ancient Greekτροχιλία
7Ancient Greek-ῐ́ᾱ{{l|en|-ia}}; "suffix forming abstract feminine...
8Proto-Indo-European-íh₂
9Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via Middle English trukere

StepLanguageWordMeaning
1Middle Englishtrukereone who disappoints, a deceiver

Words derived from “trucker

Every word from Proto-Indo-European -h₂Every word from Ancient Greek -ῐ́ᾱEvery word from Ancient Greek τροχιλία