noun
rei
noun
1
A unit of old Portuguese currency, used before the escudo; plural was "réis."
"The old ledger listed the price of the cloth in réis."
How to Use Rei
Learner’s notesIn plain EnglishAn old, now-obsolete Portuguese coin denomination, mostly seen today in historical texts.
Common mistake
Technically not the "correct" singular in Portuguese (that's "real") — "rei" arose from mistakenly treating "réis" as a regular plural.
Word Forms
reis plural
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Etymology
A back-formed singular from the Portuguese plural réis; strictly, the correct singular form is "real."