Where does “ringbill” come from?

ringbill (English) comes from English Bill, from Middle English bill, from Old English bil, from Frankish billi, from Proto-Germanic bilją, from Proto-Germanic harjaz, from Proto-Indo-European kóryos, from Proto-Indo-European ḱer- — army.

ringbill (English): "Aythya collaris", a diving duck of North America...

Definitions

  1. "Aythya collaris", a diving duck of North America...

Ancestry of “ringbill”, step by step

ringbill traces back through two separate lines of ancestry.

via English Bill

StepLanguageWordMeaning
1EnglishBillA nickname for the British constabulary. Often called "The Bill" or "Old Bill"
2Middle Englishbill
3Old Englishbila kind of sword or other bladed weapon,...
4Frankishbilli
5Proto-Germanicbiljąa cutting implement; blade; axe; sword; spike;...
6Proto-Germanicharjazarmy; army leader; commander; warrior
7Proto-Indo-Europeankóryoswar; troops; army; war, troops
8Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
9Proto-Indo-Europeankr̥-to turn, to bend
10Proto-Indo-Europeanker-army

via English ring

StepLanguageWordMeaning
1EnglishringA solid object in the shape of a circle; A group...
2Middle Englishryngring
3Old Englishhringring
4Proto-West Germanichringring, circle
5Proto-Germanichringazring, circle; curve; sound, ring
6Proto-Indo-European(s)krengʰ-to turn, bend
7Proto-Indo-European(s)ker-to cut off; to turn, bend
8Proto-Indo-Europeansek-to cut, cut off, sever
Every word from Proto-Indo-European ker-Every word from Proto-Indo-European kr̥-Every word from Proto-Indo-European ḱer-