Where does “mainstem” come from?

mainstem (English) comes from English stem, from English femme, from French femme, from Middle French femme, from Old French fame, from Latin fēmina, from Proto-Italic fēmanā, from Proto-Indo-European dʰeh₁-m̥n-eh₂ — to suckle, nurse.

mainstem (English): The principal watercourse of a river that has...

Definitions

  1. The principal watercourse of a river that has...

Ancestry of “mainstem”, step by step

mainstem traces back through two separate lines of ancestry.

via English stem

StepLanguageWordMeaning
1EnglishstemThe stock of a family; a race or generation of...
2EnglishfemmeA woman, a wife; a young woman or girl; A...
3Frenchfemmewoman; wife; Alternative form of fem
4Middle Frenchfemmewife; woman
5Old Frenchfamewife, female partner; woman
6Latinfēminawoman
7Proto-Italicfēmanāwoman
8Proto-Indo-Europeandʰeh₁-m̥n-eh₂who sucks; one who is sucked; one who suckles;...
9Proto-Indo-Europeandʰeh₁(y)-to suckle, nurse

via English main

StepLanguageWordMeaning
1EnglishmainOf chief or leading importance; prime, principal;...
2Frenchmainhand; handball
3Middle Frenchmainhand
4Old Frenchmainhand
5Latinmanushand; bravery, valor; violence, fighting
6Proto-Italicmanushand
7Proto-Indo-Europeanman-human being; man; hand
Every word from Proto-Indo-European dʰeh₁(y)-