Where does “blackboard” come from?

blackboard (English) comes from English board, from English boardrider, from English rider, from Middle English ridere, from Middle English ryder, from Old English rīdere, from Old English rīdan, from Proto-West Germanic rīdan — to fit, to fix, to put together.

blackboard (English): A large flat surface, finished with black slate...

Definitions

  1. A large flat surface, finished with black slate...

Ancestry of “blackboard”, step by step

blackboard 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 black

StepLanguageWordMeaning
1EnglishblackAbsorbing all light and reflecting none; dark and...
2Middle EnglishblakeAlternative form of blak
3Old Englishblācshining, white, pale; bleak, pale, pallid, wan,...
4Old English-ianForms verbs from nouns and adjectives
5Old English-ōjan—
6Proto-West Germanic-ōnCreates denominative verbs from nouns; Creates...
7Proto-Germanic-ōnąCreates denominative verbs from nouns; Creates...
8Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
9Proto-Indo-European-yétiCreates intransitive, often deponent,...
10Proto-Indo-Europeanyé-—
11Chichewaiyehe, she

Words derived from “blackboard”

Every word from Proto-Indo-European h₂er- →Every word from Proto-Indo-European rēydʰ- →Every word from Proto-Germanic rīdaną →