Where does “piefight” come from?

piefight (English) comes from English PIE, from Middle English pie, from Old French pié, from Latin pēs, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

piefight (English): A fight involving pies, especially the comical...

Definitions

  1. A fight involving pies, especially the comical...

Ancestry of “piefight”, step by step

piefight traces back through two separate lines of ancestry.

via English PIE

StepLanguageWordMeaning
1EnglishPIEA type of pastry that consists of an outer crust and a filling. (Savory pies are more popular in the UK and sweet pies are more popular in the US, so "pie" without qualification has different connotations in these dialects.)
2Middle EnglishpieAlternative form of pye
3Old Frenchpiéfoot
4Latinpēsa foot, in its senses as
5Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
6Ancient Greek-τρονForms instrument nouns
7Proto-Hellenic-tronForms instrument nouns from verb stems
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English fight

StepLanguageWordMeaning
1EnglishfightTo contend in physical conflict, either singly or...
2Middle EnglishfightenSimple past faght and past participle foghten...
3Old Englishfeohtanto fight
4Proto-West Germanicfehtanto fight
5Proto-Germanicfehtanąto comb, detangle
6Proto-Indo-Europeanpeḱ-to pluck; livestock; wealth
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον