Where does “breastrail” come from?

breastrail (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...

breastrail (English): The upper rail of any parapet of ordinary height,...

Definitions

  1. The upper rail of any parapet of ordinary height,...

Ancestry of “breastrail”, step by step

breastrail 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 breast

StepLanguageWordMeaning
1EnglishbreastEither of the two organs on the front of a female...
2Middle Englishbrestchest, thorax; The breast in several contexts;...
3Old Englishbrēostchest
4Proto-West Germanicbreustbreast, chest
5Proto-Germanicbreustąbreast, chest
6Proto-Indo-Europeanbʰrews-to break
Every word from Proto-Indo-European -tḗrEvery word from Latin -ulaEvery word from Latin rēgula