The term "tsunami" is a borrowing from the Japanese tsunami 津波, meanin... - dofaq.co
tsunami

The term "tsunami" is a borrowing from the Japanese tsunami 津波, meanin...

 wikipedia - 17 Jan 2022
The term "tsunami" is a borrowing from the Japanese tsunami 津波, meaning "harbour wave". For the plural, one can either follow ordinary English practice and add an s, or use an invariable plural as in the Japanese.[14] Some English speakers alter the word's initial /ts/ to an /s/ by dropping the "t", since English does not natively permit /ts/ at the beginning of words, though the original Japanese pronunciation is /ts/.

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