Where does “birthline” come from?

birthline (English) comes from English birth, from Middle English birthen, from Old English byrþen, from Proto-West Germanic burþini, from Proto-West Germanic burþī, from Proto-Germanic burþį̄, from Proto-Indo-European bʰēr- — shiny, light brown.

birthline (English): A predicted line on the Hertzsprung-Russell...

Definitions

  1. A predicted line on the Hertzsprung-Russell...

Ancestry of “birthline”, step by step

birthline traces back through two separate lines of ancestry.

via English birth

StepLanguageWordMeaning
1EnglishbirthThe process of childbearing; the beginning of...
2Middle Englishbirthen
3Old Englishbyrþenburden
4Proto-West Germanicburþiniburden
5Proto-West Germanicburþīburden
6Proto-Germanicburþį̄burden
7Proto-Indo-Europeanbʰēr-shiny, light brown

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
Every word from Proto-Indo-European bʰēr-Every word from Proto-Germanic burþį̄Every word from Proto-West Germanic burþī
birthline — Etymology, Origin & Word History | Etymology Explorer