The literary term in this sentence is metaphor. It compares the person referred to as a "wolf" to a "dog" to convey a deeper meaning about their true nature.
This is an example of a paradox (an impossible situation).
To thrive; to prosper., The objective case of thou. See Thou.
The metaphor is literary term that is used in the underlined portion of sonnet XVIII Nor shall death brag thou wander'st in his shade.
We need some context here. I assume you are talking about "thou have to say" which is a fragment of a sentence and means nothing unless the sentence is completed. Since the verb "have" does not agree with the pronoun "thou" (the correct form would be "hast"), we have to assume that there is some other verb in the sentence. Perhaps it was "What dost thou have to say?" but I'm just guessing.
"Thou cad, thou serpent, thou viper; so low, so vile, so base"
Metaphor
It generally means Dost thou have a house? But it could also be a declarative sentence: Thou hast a house.
Thou, thy and you at a beginning of a sentence
1040
thou is rarely used nowadays. it means «you». it was more popular during Shakespeare's days. it was used to mark a difference between the singular«you» and the plural «you». however, nowadays this difference has been mitigated. thou can be used, however, in the literary style.
"Thee" and "thou" are archaic or formal English pronouns used in place of "you." "Thee" is the object form, while "thou" is the subject form. Use "thee" when referring to the object of a sentence (e.g., "I love thee"), and "thou" when referring to the subject (e.g., "Thou art kind").
She always acts holier-than-thou, looking down on others for their lifestyle choices.