Thanks for this interesting question. I really need to see this print page. Could you please scan it as a .jpg or .pdf and post it here?
Generally a TN such as you describe in this case would not be in accordance with the rules and also not necessary, IF I understand what you're asking. I really need to see the print to be sure I completely understand the situation here. I'm afraid I just don't understand suav = delicacaodo either. With the print page, I would be able to see surrounding text and get some context.
Thanks for sending that print page. It's funny how things fall into place when you can actually see them even though you carefully explained.
The short answer is yes, repeat the italics after the slash. Keep the slash as printed and don't substitute a hyphen.
The long answer is that the 2007 Update says to repeat the italics when both WORDS are in italics, the italics is repeated for these WORD PARTS. In English, print emphasis for freestanding letters and word parts is ignored, and that is why the rule mentions only a WORD after the slash. However, in foreign language braille, the print emphasis for FOREIGN LANGUAGE freestanding letters and FOREIGN LANGUAGE word parts is retained.
Oh dear. I have garbled a sentence. This is what happens when you type too fast. Update says to repeat the italics when both WORDS are in italics, and in foreign language braille we apply the same rule to freestanding foreign language letters and foreign language word parts. So the answer is still yes!