In order to select the verb from the given options, let's understand each words' meaning.
Option A - 'Nameless' means a person or a thing that has no name or has a name that is not known. It is an adjective and not a verb. Hence, option A is incorrect.
Option B - 'Nominally' means the way a person or a thing is according to someone's supposition. It is an adverb and not a verb. Hence, option B is incorrect.
Option D - 'Nominal' means someone or something in name or thought only, or someone or something that exists in name only. It is an adjective and not a verb. Hence, option D is incorrect.
Option C - 'Nominate' means to suggest something or someone to be selected. 'Nominate' is an action, hence it is a verb. Thus option C is the correct answer.
NOMINATE is the verb among the given options.