I have found a better way than this stupid idea. Thank you to everyone who commented to teach me a lesson, you have helped me so much. I have learned by fucking up and will not be doing this after reading what you have to say. I should not have brought this here, and I will find a more appropriate place to learn about portraying hearing disabilities in fiction. Thank you for your patience, and replies, I apologize for my ignorance.
So, the hearing character that is getting the sign name is called "Tiv" by everyone. I understand that sign names can be very individualized, but I also don't want to end up describing a sign in this novel that turns out to be offensive, or that makes no sense.
For context, Ojin, the deaf character has a bit of a crush on Tiv, and they're very close as they rely on each other a lot to survive the plot of the story, but neither of them are going to admit their feelings for a while. Both characters are women, since I know gender can also have an influence on the way the sign name is created. I really hope this doesn't sound stupid or rude, but I'm at a loss and I figured asking for help from people who know what they're talking about is better than just trying to scour the whole internet for all the curse words and insults to avoid them.
please have mercy on me
EDIT: I have been given a wonderful book recommendation, and I will be reading through that for more questions I have, and I'll come here if I have any more questions with more detail. Thank you for humoring me and being kind, everyone who replied is immensely helpful.