Where does “nine to five” come from?

nine to five (English) comes from English to, from Middle English to, from Middle English tone, from Latin tonus, from Ancient Greek τόνος, from Proto-Hellenic tónos, from Proto-Indo-European tónos, from Proto-Indo-European ten- — to stretch, to extend.

nine to five (English): From 9 a.m. to 5 p.m

Definitions

  1. From 9 a.m. to 5 p.m

Ancestry of “nine to five”, step by step

nine to five traces back through 3 separate lines of ancestry.

via English to

StepLanguageWordMeaning
1EnglishtoA particle used for marking the following verb as...
2Middle Englishtotoe; to; too
3Middle Englishtonethe one
4LatintonusThe stretching or straining of a rope; A strain;...
5Ancient Greekτόνοςrope, cord; chord; tone, note
6Proto-Hellenictónosrope, cord; tension
7Proto-Indo-Europeantónossomething stretched; chord, fiber, string
8Proto-Indo-Europeanten-to stretch, to extend

via English five

StepLanguageWordMeaning
1EnglishfiveA numerical value equal to 5; the number...
2Middle Englishfyffive
3Old Englishfīffive
4Proto-West Germanicfimffive
5Proto-Germanicfimffive
6Proto-Indo-Europeanpénkʷefive

via English nine

StepLanguageWordMeaning
1EnglishnineA numerical value equal to 9; the number...
2Middle Englishnynnine
3Old Englishniġonnine
4Proto-Germanicnewunnine
5Proto-Indo-Europeanh₁néwn̥nine
Every word from Proto-Indo-European ten-