Where does “middlestream” come from?

middlestream (English) comes from English stream, from Middle English streem, from Middle English strem, from Old English strēam, from Proto-West Germanic straum, from Proto-Germanic straumaz, from Proto-Indo-European srowmos, from Proto-Indo-European srew- — to flow; to guard; to bind, to tie together.

middlestream (English): Neither upstream nor downstream, but between...

Definitions

  1. Neither upstream nor downstream, but between...

Ancestry of “middlestream”, step by step

middlestream 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 middle

StepLanguageWordMeaning
1EnglishmiddleA centre, midpoint; The part between the...
2Middle EnglishmyddelThe middle or centre of something
3Old Englishmiddelmiddle
4Proto-West Germanic*midl
5Proto-Germanicmidląmiddle
6Proto-Germanicmidjōmiddle, midst
7Proto-Indo-Europeanmédʰyosmiddle
8Proto-Indo-Europeanmedʰi-with, among; with, along
9Proto-Indo-Europeanmein the middle of, near, by, around, with
Every word from Proto-Indo-European ser-Every word from Proto-Indo-European srew-Every word from Proto-Indo-European srowmos