Capitalising a sentence whose first word is explicitly lowercase [duplicate]
If the word really demands lower case and you really really don't want to paraphrase to stop it looking odd, then you're left with keeping it in lower case and it looking slightly odd...
No, you shouldn't capitalize. I think you are referring to the rule that proper nouns should always be capitalized, but there are many examples where they are not, for e.g., iTunes, iPod, pH(from chemistry) They are never capitalized.