My father in law is a Persian speaker. I was very surprised to learn that thank you (mersi) is the same as in French, and OK/indeed (baleh) is the same as in Spanish.
[1] https://en.wiktionary.org/wiki/%D9%85%D8%B1%D8%B3%DB%8C#Pers...
There are loads.
https://en.wikipedia.org/wiki/List_of_Japanese_words_of_Port...
> evidence indicates arigatō has a purely Japanese origin
I remain suspicious, though. Maybe what happened was the popularization of an existing Japanese term under the influence of Portuguese Jesuits, since it sounded similar to obrigado?
(I do not actually speak Manx, but 2026 is the Year of the Manx Language. I should learn some.)
https://en.wikipedia.org/wiki/Reborrowing
For example, katsu from cutlet, is borrowed back into English to mean… cutlet.
And when combined with “curry” as in “katsu curry” the journey meanders all the way through Tamil, Portuguese, Japanese and English, following sailors where they went.