Where does “cograil” come from?

cograil (English) comes from English rail, from Middle English rail, from Old English regol, from Latin rēgula, from Latin -ula, from Proto-Indo-European -tlom, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

cograil (English): One of the rails of a cog railway, which engages the cog; the rack of a rack railway

Definitions

  1. One of the rails of a cog railway, which engages the cog; the rack of a rack railway

Ancestry of “cograil”, step by step

cograil traces back through two separate lines of ancestry.

via English rail

StepLanguageWordMeaning
1EnglishrailA horizontal bar extending between supports and...
2Middle Englishrail
3Old Englishregola rule; a ruler
4Latinrēgularule, bar
5Latin-ularegō + API → rēgula; tegō + API → tēgula;...
6Proto-Indo-European-tlomAlternative form of *-trom
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English cog

StepLanguageWordMeaning
1EnglishcogA tooth on a gear; A gear; a cogwheel; An...
2Middle Englishcogge
3Proto-Germanickuggō
4Proto-Indo-Europeangugāhump, ball
5Proto-Indo-Europeangēw-to bend, arch
Every word from Proto-Indo-European -tḗr