Where does “razorbill” come from?

razorbill (English) comes from English razor, from Middle English rasour, from Old French rasour, from Old French raser, from Vulgar Latin raso, from Latin rāsus, from Latin rādō, from Proto-Italic razdō — to scrape, scratch, gnaw.

razorbill (English): A large black and white auk, "Alca torda", native...

Definitions

  1. A large black and white auk, "Alca torda", native...

Ancestry of “razorbill”, step by step

razorbill traces back through two separate lines of ancestry.

via English razor

StepLanguageWordMeaning
1EnglishrazorA keen-edged knife of peculiar shape, used in...
2Middle Englishrasourrazor
3Old Frenchrasour
4Old Frenchraserto shave
5Vulgar Latinrasodative masculine singular of rāsus; dative neuter...
6Latinrāsusscraped, shaved
7Latinrādōto scrape, shave, scratch
8Proto-Italicrazdō
9Proto-Indo-Europeanrh₁d-dʰ-
10Proto-Indo-Europeanreh₁d-to scrape, scratch, gnaw

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
Every word from Proto-Indo-European reh₁d-