One French boy or girl (5)

I believe the answer is:

irene

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'girl' is the definition.
(I've seen this before)

'one french boy' is the wordplay.
'one' becomes 'I' (Roman numeral).
'french boy' becomes 'rene' (I am not sure about the 'french' bit.).
'i'+'rene'='IRENE'

'or' is the link.

Can you help me to learn more?

(Other definitions for irene that I've seen before include "Greek godess of peace" , "Greek goddess of peace (English name)" , "Goddess of peace - Byzantine ruler" , "Girl of peace" , "woman" .)

I've seen this clue in The Globe and Mail.

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