That depends on the use and context:
The word Copyright should always be capitalized. It is a specific name for a specific thing.
Yes, Italian is always capitalized.
no
No it should only be capitalized if it forms part of a title.
If it is the first word in the sentence then it should be capitalized or if it is in a title but other than that it is always lower case.
Yes, the word "Christening" should be capitalized when referring to the Christian sacrament of baptism.
Yes, Sunday should always be capitalized.
No, the word "rif" is not always capitalized. It should only be capitalized if it is part of a proper noun or at the beginning of a sentence.
The word Copyright should always be capitalized. It is a specific name for a specific thing.
You would always capitalize the word Jew because it is the name of a nationality. Other nationalities are also always capitalized, for examples:AmericanGermanMexicanCanadianIranianAustralian
Indian should always be capitalized.
Yes, Italian is always capitalized.
no
No it should only be capitalized if it forms part of a title.
Yes, America is always capitalized because it is a propernou n.
Yes, the word "Evangelical" should be capitalized when referring to the Evangelical Christian movement or tradition.
If it is the first word in the sentence then it should be capitalized or if it is in a title but other than that it is always lower case.