Where does “yen” come from?

yen (Turkish) comes from Ottoman Turkish یك, from Old Anatolian Turkish یك, from Persian یک, from Middle Persian ʾywk', from Middle Persian ʾy, from Proto-Iranian Háywah, from Proto-Indo-Iranian Háywas, from Proto-Indo-European óynos — one; single.

yen (Turkish): sleeve

Definitions

  1. sleeve

Ancestry of “yen”, step by step

yen traces back through two separate lines of ancestry.

via Ottoman Turkish یك

StepLanguageWordMeaning
1Ottoman Turkishیكone, the number represented by the Arabic numeral 1 and the numerical value equal to that cardinal number
2Old Anatolian Turkishیكgood
3PersianیکAPI •; one
4Middle Persianʾywk'—
5Middle Persianʾy—
6Proto-IranianHáywahone
7Proto-Indo-IranianHáywasjust, only; one
8Proto-Indo-Europeanóynosone; single

via Japanese 円

StepLanguageWordMeaning
1Japanese円a round or circular object; a circle; roundness;...
2Chinese圓circular, round; yuan, yen, dollar; round
Every word from Proto-Indo-European óynos →Every word from Proto-Indo-Iranian Háywas →Every word from Proto-Iranian Háywah →