Where does “bitstream” come from?

I need to work through this chain carefully, but I notice there's a significant problem: the chain provided doesn't actually connect to "bitstream" in a coherent way. The chain shows: - English bit - English binary digit - Old English strēam - Proto-Germanic straumaz - Proto-Indo-European bʰeyd- - Proto-Indo-European ser- - Proto-Indo-European ser- This chain appears to trace "stream" (strēam → straumaz), not "bit" or "bitstream." The chain breaks down because: 1. "Bitstream" is a compound of "bit" + "stream" 2. The chain only etymologizes "stream," not "bit" 3. "Bit" itself comes from "binary digit," which is 20th-century technical terminology 4. The chain then jumps to Old English strē

bitstream (English): A stream of bits

Definitions

  1. A stream of bits

Ancestry of “bitstream”, step by step

bitstream traces back through two separate lines of ancestry.

via English stream

StepLanguageWordMeaning
1EnglishstreamA small river; a large creek; a body of moving...
2Middle EnglishstreemAlternative form of strem
3Middle EnglishstremA waterbody; a region of the world containing...
4Old Englishstrēamcurrent; stream
5Proto-West Germanicstraumstream
6Proto-Germanicstraumazstream, current, river
7Proto-Indo-Europeansrowmosriver
8Proto-Indo-Europeansrew-to flow, stream
9Proto-Indo-Europeanser-to flow; to guard; to bind, to tie together

via English bit

StepLanguageWordMeaning
1EnglishbitA piece of metal placed in a horse's mouth and...
2Middle EnglishbitteA flexible container for water or wine; a waterskin or wineskin
3Old Englishbytbottle, flagon
4Proto-Germanic*buttjā
5Latinbuttiacask, barrel
6Ancient Greekβούττιον
7Ancient Greek-ῐονdiminutive suffix; "suffix forming...
8Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Indo-European ser-
bitstream — Etymology, Origin & Word History | Etymology Explorer