Where does “いつも” come from?

いつも (Japanese) comes from Japanese も, from Old Japanese も, from Proto-Japonic mə, from Arabic مَن — who?; who.

いつも (Japanese): always, invariably, all the time; usually; never

Definitions

  1. always, invariably, all the time; usually; never

Ancestry of “いつも”, step by step

いつも traces back through two separate lines of ancestry.

via Japanese も

StepLanguageWordMeaning
1JapaneseもUsed to form the conjectural form of verbs,...
2Old Japaneseもnon-unique topic marker: also, even
3Proto-Japonicmənon-unique topic marker: also, even, too, as well
4Arabicمَنwho?; who

via Japanese いつ

StepLanguageWordMeaning
1Japaneseいつwhen
2Old Japaneseいつ—
3Proto-Japonicetufive

Words derived from “いつも”

Every word from Arabic مَن →Every word from Proto-Japonic mə →Every word from Old Japanese も →