Where does “extraregular” come from?

extraregular (English) comes from English regular, from Middle English reguler, from Middle French regulier, from French régulier, from Old French reguler, from Latin rēgulāris, from Latin rēgula, from Latin -ula — Derives agent nouns from verbs, denoting someone...

extraregular (English): Not covered by a rule or rules

Definitions

  1. Not covered by a rule or rules

Ancestry of “extraregular”, step by step

extraregular traces back through two separate lines of ancestry.

via English regular

StepLanguageWordMeaning
1EnglishregularBound by religious rule; belonging to a monastic...
2Middle Englishreguler
3Middle Frenchregulier
4Frenchrégulierregular; dependable; legitimate
5Old Frenchregulerconforming to Chrisitan law
6Latinrēgulārisductile (able to be formed into a bar)
7Latinrēgularule, bar
8Latin-ularegō + API → rēgula; tegō + API → tēgula;...
9Proto-Indo-European-tlomAlternative form of *-trom
10Proto-Indo-European-tromForms nouns denoting a tool or instrument
11Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English extra

StepLanguageWordMeaning
1EnglishextraBeyond what is due, usual, expected, or...
2EnglishextraordinaryNot ordinary; exceptional; unusual; Remarkably...
3Latinextraordināriusextraordinary
4Latinōrdinem
5Middle Low Germanorden
6Latinōrdināre
7Latinōrdōa methodical series, arrangement, or order; regular line, row, or series
8Proto-Italicored(h)-to arrange

Words derived from “extraregular

Every word from Proto-Indo-European -tḗr