Hello and welcome to the RPC!
In my experience it's not a good idea to start a character with an amnesia problem. It's also sort of a faux pas to have your character jumping in from another dimension. I may have misread, but that sort of seems where you were going with "this word is not his own." Maybe you could build up at least a little bit of backstory based in Eorzea? We have a number of guides and such around here to help with that and I'm sure we'd all be willing to answer any questions you may have.
In my experience it's not a good idea to start a character with an amnesia problem. It's also sort of a faux pas to have your character jumping in from another dimension. I may have misread, but that sort of seems where you were going with "this word is not his own." Maybe you could build up at least a little bit of backstory based in Eorzea? We have a number of guides and such around here to help with that and I'm sure we'd all be willing to answer any questions you may have.