Where does “streamline” come from?

Streamline derives from English stream and English line, with stream from Old English strēam, from Proto-Germanic straumaz, ultimately from Proto-Indo-European ser-, meaning to flow.

streamline (English): A line that is tangent to the velocity of flow of...

Definitions

  1. A line that is tangent to the velocity of flow of...

Ancestry of “streamline”, step by step

streamline 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 line

StepLanguageWordMeaning
1EnglishlineA path through two or more points (compare ‘segment’); a continuous mark, including as made by a pen; any path, curved or straight
2Middle Englishlinerope, cord; line, rule, ruler, measure; rule,...
3Old Englishlīneline, rope, cord; line, cable, rope, hawser,...
4Proto-West Germanic*līnāline, chord, rope, string
5Proto-Germaniclīnǭthat which is made of flax; line, chord, rope,...
6Proto-Germaniclīnąflax
7Proto-Indo-Europeanlīno-flax

Words derived from “streamline

Every word from Proto-Indo-European ser-