Where does “demicircle” come from?

demicircle (English) comes from English circle, from Middle English circle, from Old French cercle, from Latin circulus, from Latin -ulus, from Proto-Italic -olos, from Proto-Italic -elos, from Proto-Indo-European -e-lós — Forms agent nouns from verbal roots.

demicircle (English): A semicircle; An instrument for measuring angles...

Definitions

  1. A semicircle; An instrument for measuring angles...

Ancestry of “demicircle”, step by step

demicircle traces back through two separate lines of ancestry.

via English circle

StepLanguageWordMeaning
1EnglishcircleA two-dimensional geometric figure, a line,...
2Middle Englishcircle
3Old Frenchcerclecircle
4Latincirculuscircle; An orbit; A ring, hoop
5Latin-ulusUsed to form a diminutive of a noun, indicating...
6Proto-Italic-olos
7Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
8Proto-Indo-European-e-lós
9Proto-Indo-European-lósForms agent nouns from verbal roots

via English demi

StepLanguageWordMeaning
1EnglishdemiAlternative spelling of demy; A fifty pence...
2Middle Englishdemihalf, half-sized, partial
3Anglo-Normandemihalf
4Latindīmidiushalf
5Latinmediusmiddle; half; moderate
6Latinlocusplace, spot; a passage of literature; "in the...
7Old Latinstlocus
8Proto-Italicstlokos
9Proto-Indo-Europeanstel-to put, to place; to locate
Every word from Proto-Indo-European -lós
demicircle — Etymology, Origin & Word History | Etymology Explorer