I think
Elsa is quite a stretch as a NN for
Ysabel. But I think also, beside the shared origin, the deduction from YsabEL is visible /audible in ELsa. (for example: Not like
Polly for
Mary) So, it could work out.
But, no matter what; just do not name that kid Ysabelsa xD
Sapere
Aude!
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please vote my PNL:
https://www.behindthename.com/pnl/68992