(whether legally or otherwise)
If multiple reasons, select the one that was foremost. For example, my name (Anastasia):
I chose first and foremost for the meaning, and will vote for that here
I chose for the aesthetics, as a secondary but also critical factor (I would not have chosen a name I didn't like aesthetically, no matter how appropriate the meaning)
I also chose for the "other" reason: because it's pronounceable in all the languages I speak and doesn't violate their orthography rules so doesn't require modification from language to language
(My name's short form, "Nastja", I chose as a matter of aesthetics, and because I have reasons to reject each of the other common shortenings of my name; Ana gets mistaken for a different name with a different meaning, and I don't like Stacey etc aesthetically. And now, the name Nastja has extra meaning to me, because by coincidence I ended up with a girlfriend with the same name, who since died, so now I have the honour of wearing it for both of us)