Where does “headboard” come from?

I can't write this etymology summary because the chain provided only cycles through "English back" and "English backboard" repeatedly without reaching an ultimate origin language or providing any semantic information to explain the word's development. To write an accurate one-sentence etymology, I would need: - A chain that extends to an actual source language (Old English, Proto-Germanic, Latin, etc.) - At least one meaning provided for any stage in the chain - No circular references Could you provide the complete etymological chain for "headboard"?

headboard (English): A vertical panel, either plain or upholstered,...

Definitions

  1. A vertical panel, either plain or upholstered,...

Ancestry of “headboard”, step by step

headboard traces back through two separate lines of ancestry.

via English board

StepLanguageWordMeaning
1EnglishboardA relatively long, wide and thin piece of any...
2Englishboardridersurfer
3EnglishriderOne who rides, often on a horse or a motorcycle;...
4Middle EnglishridereAlternative form of ryder
5Middle EnglishryderA rider or equestrian; one who rides a horse; A...
6Old Englishrīdererider, knight
7Old Englishrīdanto ride
8Proto-West Germanicrīdanto ride
9Proto-Germanicrīdanąto ride
10Proto-Indo-Europeanrēydʰ-
11Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via English head

StepLanguageWordMeaning
1EnglishheadThe part of the body of an animal or human which...
2English-yAdded to nouns and adjectives to form adjectives...
3Middle English-yDesignates an adjective, in many cases formed by...
4Old English-iġ-y, -ic
5Proto-West Germanic-gForms adjectives from nouns and verbs with a...
6Proto-Germanic-gaz-y
7Proto-Indo-European-ḱos-y, -ic

Words derived from “headboard

Every word from Proto-Indo-European h₂er-