Where does “一時” come from?

一時 (Japanese) comes from Japanese 一, from Japanese 始め, from Japanese 始める — begin; start; initiate; originate.

一時 (Japanese): one o'clock; temporarily

Definitions

  1. one o'clock; temporarily

Ancestry of “一時”, step by step

一時 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japaneseone, 1; "term relating to the number one"; unity
2Japanese始めbeginning, the start of an activity or time...
3Japanese始めるbegin; start; initiate; originate

via Japanese

StepLanguageWordMeaning
1Japanesetime; an event, case, occasion, moment; a...
2Old Japanesea time, moment (in time), occasion
3Old Japaneseしだa time, circumstance, occasion
Every word from Japanese 始めるEvery word from Japanese 始めEvery word from Japanese
一時 — Etymology, Origin & Word History | Etymology Explorer