Where does “handrail” come from?

I need to work through this etymology chain carefully. Looking at the chain provided: English hand | Middle French railler | Latin radiare | Latin radius | Latin rego | Latin -ulus | English -ium | English active This chain appears problematic or confused. Let me identify what I can actually establish: - "Handrail" is a compound of English "hand" + "rail" - "Rail" comes from Middle French "railler" - But the rest of the chain (radiare, radius, rego, -ulus, -ium, active) doesn't form a coherent path to "rail" The chain as given doesn't support a coherent etymology for "handrail." The problem is that the intermediate steps don't logically connect to create the word "rail," and some elements (like "-ium" and "active") seem misplaced. Given the rules state "State only

handrail (English): A rail which can be held, such as on the side of...

Definitions

  1. A rail which can be held, such as on the side of...

Ancestry of “handrail”, step by step

handrail traces back through two separate lines of ancestry.

via English rail

StepLanguageWordMeaning
1EnglishrailA horizontal bar extending between supports and...
2Middle Englishrail
3Old Englishregola rule; a ruler
4Latinrēgularule, bar
5Latin-ularegō + API → rēgula; tegō + API → tēgula;...
6Proto-Indo-European-tlomAlternative form of *-trom
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English Hand

StepLanguageWordMeaning
1EnglishHandThe part of the forelimb below the forearm or wrist in a human, and the corresponding part in many other animals
2Middle Englishhondhand; Alternative form of hound
3Old EnglishhandA hand
4Proto-West Germanichanduhand
5SwedishhandA hand; A hand; the set of cards held by a player
6Old SwedishhandA hand; A direction; A behalf
7Old Norsehǫndhand
8Proto-Germanichanduzhand

Words derived from “handrail

Every word from Proto-Indo-European -tḗr
handrail — Etymology, Origin & Word History | Etymology Explorer