Where does “peritrigonal” come from?

peritrigonal (English) comes from English trigonal, from English trigon, from French trigone, from Latin trigonum, from Ancient Greek τρίγωνον, from Ancient Greek τρίγωνος, from Ancient Greek γωνία, from Ancient Greek γόνυ — knee.

peritrigonal (English): Surrounding a trigone

Definitions

  1. Surrounding a trigone

Ancestry of “peritrigonal”, step by step

peritrigonal traces back through two separate lines of ancestry.

via English trigonal

StepLanguageWordMeaning
1EnglishtrigonalTriangular; Of or pertaining to a crystal system...
2EnglishtrigonA triangle; An ancient triangular harp of...
3Frenchtrigone
4Latintrigonumnominative neuter singular of trigōnus
5Ancient Greekτρίγωνονtriangle; one of the Athenian lawcourts; the...
6Ancient Greekτρίγωνοςthree-cornered; three-sided
7Ancient Greekγωνίαcorner, angle; joiner's square; cornerstone
8Ancient Greekγόνυknee
9Proto-Hellenicgónuknee
10Proto-Indo-Europeanǵónuknee

via English peri

StepLanguageWordMeaning
1EnglishperiA sprite or supernatural being
2Ottoman Turkishپریfairy
3Persianپریsprite or supernatural being in Iranian/Persian...
4Persianپرfull; feather; wing
5Middle Persianpurr
6Proto-Iranianpr̥Hnáhfull, filled
7Proto-Indo-Iranianpr̥Hnásfull, filled
8Proto-Indo-Europeanpl̥h₁nósfull
9Proto-Indo-Europeanpleh₁-to fill
Every word from Proto-Indo-European ǵónuEvery word from Proto-Hellenic gónuEvery word from Ancient Greek γόνυ